FAQ
Here you can find a number of questions and answers regarding our products.
Guides (2)
The reset button is located between the supply voltage connection and Ethernet 1.
The button is located under the lid and can be reached with a small screwdriver. However, use caution and do not use a pointed screwdriver that could end up next to the button.
The reset button allows you to restart the PiiGAB M-Bus 900, set the network settings to default (DHCP plus random IP address) or change the web login to default (Admin, Admin).
The reset button should be used as follows. Press the button until the selected LED is lit, when the LED flashes rapidly, press the button again and the selected function will be executed.
Example: Press the button once to switch on P1 (Rx). Wait for P1 (Rx) to flash quickly and then press the button again. If you press the button while it is flashing rapidly, the PiiGAB M-Bus 900S/T will automatically restart. If you do not press while the light is flashing, nothing will happen.
The table below describes the functions of the button:
| Restart | Press the button 1 time and wait until the P1/Tx LED flashes rapidly. Then press the button an additional time while it is flashing | The device is restarted. |
| Resetting IP settings | Press the button 1 time and wait until the P1/Tx LED flashes rapidly. Then press the button an additional time while it is flashing. | The Ethernet port of the device returns to its original settings. DHCP and randomised IP if there is no DHCP server available. |
| Resetting passwords | Press the button 6 times and wait until the P3/Rx line flashes rapidly. Then press the button an additional time while it is flashing. | If a password has been selected for the login, it now returns to Admin : Admin |
Category
Guides,
PiiGAB 900S/T
0
4
Here is an example of how to setup the initial contact with a PiiGAB M-Bus 900.
- Connect the PiiGAB M-Bus 900 to a network switch.
- Connect the computer to the same network switch.
- Configure the computer’s network card with this IP-configuration:
- IP-address: 192.168.10.1
- Netmask: 255.255.255.0
- Gateway: 192.168.10.254
- Check the IP-configuration with the ipconfig command in the command interpreter.
- Read the MAC-address of the PiiGAB M-Bus 900 on the right side. (Starts with E8-99-5A).
- Start the PiiGAB M-Bus Wizard.
- In the main menu, select Change gateway IP-settings and press Next.
- Select Select Setup IP using network (UDP broadcast)..
- Specify the MAC-address and press Next.
- Select Use the following IP-address.
- Specify the following IP-configuration:
- IP-address: 192.168.10.2
- Netmask: 255.255.255.0
- Gateway: 192.168.10.1
- Press the Next and then Apply..
Note: Ignore the error messages displayed in PiiGAB M-Bus Setup Wizard. - Wait one minute for the PiiGAB M-Bus 900 to restart.
- Go ahead to Find gateways on your network. in PiiGAB M-Bus Wizard.
Now you should see the PiiGAB M-Bus Setup display show the PiiGAB M-Bus 900 in the list. Check the MAC-address and the IP-address should be 192.168.10.2.
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6
PiiGAB 900S/T (36)
Some meters do not handle SND_NKE together with REQ_UD2. Untick the SND_NKE option and the meters should respond.
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
0
Check that the supply voltage (24VAC / DC) to the converter is fully isolated from other products in your control panel. Also check the ground on the primary and secondary sides of the protection transformer so that they are not interconnected.
Category
PiiGAB 900S/T,
PiiGAB 810
0
0
Check that the supply voltage (24VAC / DC) to the converter is fully isolated from other products in your control panel. Also check the ground on the primary and secondary sides of the protection transformer so that they are not interconnected.
Category
PiiGAB 900S/T
0
0
To troubleshoot M-Bus meters connected to an PiiGAB M-Bus 810 there are a couple of things to verify.
Here is a list of good tools to use during troubleshooting:
- PiiGAB M-Bus Wizard
- Getting started PiiGAB M-Bus 810
- MicroMaster USB
- PiiGAB's general M-Bus documentation
IP-address
What IP-address is the gateway using? To have network communication with the gateway you need to setup your computer in the same network as the gateway. If there is an IT section please contact them to receive an IP-address for your computer. With the PiiGAB M-Bus Setup Wizard you can search gateways on the network or ping the gateway’s IP-address to verify if the network communication works.
In the PiiGAB M-Bus Wizard, you can search for converters on the network or "ping" the IP address of the converter to verify that the network connector is working.
f it’s not possible to receive the gateway’s IP-address then you need to setup a new IP-address.
Please see the FAQ on how to do this.
Harbour
What port is the gateway set to in order for the the M-Bus client to read the M-Bus meters? If you have network connection with the gateway you can find out the port with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Protocol
What protocol is the gateway set to in order for the the M-Bus client to read the M-Bus meters? If you have network connection with the gateway you can find out the protocol with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Note: If the gateway uses TCP you might not be able to connect to the gateway with the PiiGAB M-Bus Setup Wizard to read the M-Bus meters. This is due to that another client is connected to the port that the gateway is using. Change the port, change to UDP or turn off the client.
Communication speed
What communication speed is the gateway set to in order for the the M-Bus client to read the M-Bus meters?If you have network connection with the gateway you can find out the communication speed with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Note: If the gateway is set to 300 baud the communication speed is very slow. Remember to change the timeout in the PiiGAB M-Bus Setup Wizard to handle the long response time.
M-Bus meters
Is there any documentation of what M-Bus meters that are connected to the gateway? What addresses does the M-Bus meters use? (primary or secondary addresses).
If there is documentation of the meters then you can simple check each meter one by one with the PiiGAB M-Bus Setup Wizard. It’s also possible to read the search function in the PiiGAB M-Bus Setup Wizard.
If there is no documentation of the meters then you can use the search function in the PiiGAB M-Bus Setup Wizard. If the the result of the search function is incomplete then you have to find each meter one by one on the site and test them individually by it’s M-Bus address (primary or secondary address).
A M-Bus meter not responding
If an M-bus meter is not responding then you have to test the meter individually. If possible disconnect all other meters and test only that specific meter. Try with primary address 254 or the meter’s own primary or secondary address.
If it’s not possible to disconnect all meters then you can test the specific meter with a MicroMaster USB.
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0
On the menu in the gateway's interface, click on "Administrations" under which there is then the submenu "Basic settings". Scroll down a bit on the page and you will get to "Webserver Setting", see screenshot.
Category
PiiGAB 900S/T
0
0
If nothing else has been specified in the order, the default configurations are set for DHCP.
Category
PiiGAB 900S/T
0
0
At least one can be specified. If a meter does not respond after a re-query, an additional re-query is unlikely to help.
Category
PiiGAB 900S/T
0
0
The following list will explain how to install a license in the PiiGAB M-Bus 900/900S. These steps will also show the current license of a PiiGAB M-Bus 900/900S.
- Start the gateway’s web interface in any web browser.
- Go to the Administrations page.
- Under the Basic Settings tab you will find the section License. This shows the licence of the converter (SW 2.5.0 or higher)
- Paste the license into the field Update licence.
- Press the button Update.
- Wait for the license to be installed.
Category
PiiGAB 900S/T,
Quickpost
0
0
The following list will explain how to install software in the PiiGAB M-Bus 900 V2 and PiiGAB M-Bus 900S. These steps are either used to install a new software or update an existing.
- Download the software as a ZIP file, please click here.
- Unzip the file to gain access to the tgz-file.
- Place the tgz-file somewhere on the computer. Don’t open the tgz-file.
- Start the web interface for the gateway in any browser.
- Go to the Administration page.
- Find the section Update Software.
- Press the Browse… button.
- Browse to and select the tgz-file.
- Press the button Install.
- Wait until the installation has finished.
Note: If QuickPost, Modbus2MBus or Wireless M-Bus is not shown in the web browser, please press CTRL + F5.
Category
PiiGAB 900S/T,
Quickpost
0
0
If the communication does not work, check that no other process locks that port.
Check that Modbus2Mbus or any slave port is not set to RS485.
Also enable RS-485 Failsafe in MBushub for more stable collection.
Category
PiiGAB 900S/T,
RS485 converter - Viltrus
0
0
Only PiiGAB M-Bus 900 V2.XX.XX.XXX or later versions support the function where the IP address can be changed with the PiiGAB M-Bus Wizard.
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
0
Both PiiGAB M-Bus 900 V2 and PiiGAB M-Bus 900S can change their IP address with the PiiGAB M-Bus Wizard.
Keep in mind that the netmask and default gateway will not be set. These need to be set in the converter's web interface. Please read it under the FAQ section "Example of initial contact"
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
0
Yes you can download the new update even if you are using http, but you will need to change the configuration so that http is the default before updating, however we recommend that you use HTTPS instead for security reasons. Valid from version 2.6.2
Here's how to change from HTTP to HTTPS in the gateway, click here
If you don't know whether you're running HTTP or HTTPS, you can download our script to find out. Download it here
Category
PiiGAB 900S/T
0
0
If you are using TCP and the M-Bus Wizard at the same time you cannot make contact with an additional TCP client since the M-Bus Wizard “owns” the TCP handle. Shut down the M-Bus Wizard before starting the second TCP client. The same goes if you are using COM ports.
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0
Quick start Guide to Configure M-Bus to Modbus
1. Plug all the meters you want to use on the M-bus loop into Mbus Master ports 1-4 on your Gateway.
2. Search your meters in the web interface using a "Fast Search" in the Startup Config tab
Your meters should appear in a list under the "Fast Search" button
3. Go to the overview page in Startup Config where the meters should now be visible in the list below.
Add Encryption Keys to the meters if they are Wireless meters
4. Click on "Auto-Create Myconfig files"
The files to be used to read meters are now created
5. Go to MbusHub and the tab "Master port", then select the configuration file for the Master port file as shown below. Save the configuration.
6. Go to Slave Port 1 and select the configuration file as shown below
7. Now you will be able to query against the registry entries described in the CSV file located in the slave ports tab of the web interface
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6
Conversion of Modbus meters to M-Bus is done in the program Modbus2Mbus Config. You can find this for download at https://www.piigab.com/products/mjukvara/
In order to have a simple and trouble-free conversion, it is important to have the meter's manual available.
Create a new project and then add a device per meter.
Set the parameters for Mbus and Modbus communication
Add objects for each measured value to be read out and set the correct Modbus register as well as unit and scaling.
If you have several meters of each type, copy the meter and only change the Slave and M-Bus address.
It is also possible to save these as templates for future projects.
After the project is finished, it is saved and then uploaded to the 900
Category
PiiGAB 900S/T,
Modbus2Mbus
1
2
Read M-Bus meters from external M-Bus master
The following list instructs how to configure a PiiGAB M-Bus 900/900S as an M-Bus slave, i.e. one or two external M-Bus masters can read the M-Bus meter connected to the gateway.
Notice: On PiiGAB M-Bus 900 there can only be one external M-Bus master connected.
- Start the gateway’s web interface in any web browser.
- Go to the Configuration page.
- Select any slave port to configure as an M-Bus slave.
- Specify the following parameters:
- Type: Serial.
- Com port: M-Bus Slave 1 or M-Bus Slave 2.
- Baud rate: The specified communication speed on the M-Bus loop.
- Bit Number: Number of data bits on the M-Bus loop. Standard 8 bits.
- Parity: The parity for the M-Bus loop. Standard Even parity.
- Stop Bit: Number of stop bits on the M-Bus loop. Standard 1 stop bits.
- Timeout: Expected time to get answer from the M-Bus meter.
- Protocol: The data protocol on the M-Bus loop. Standard M-Bus.
- Press the Save settings.
- Connect the external M-Bus loop from the external M-Bus master to the following pins:
- PiiGAB M-Bus 900: Pins 15-18. Notice only one M-Bus slave.
- PiiGAB M-Bus 900S: Pins 15-16 (M-Bus slave 1) or pins 17-18 (M-Bus slave 2).
The picture shows Slave port 2 is configured for M-Bus slave 1 on 2400 baud, 8 data bits, even parity, 1 stop bit, 2000ms as timeout and M-Bus communication. M-Bus Slave 1 at 2400 baud, 8 data bits, even parity, 1 stop bit, 2000ms timeout and M-Bus communication.
Note:
- Make sure the gateway doesn’t use the specific M-Bus slave port anywhere else. For instance any other slave ports or the Modbus2MBus and/or the Wireless applications.
Category
PiiGAB 900S/T
0
0
The following list instructs how to configure a PiiGAB M-Bus 900/900S so that M-Bus meters can be read with RS232.
- Start the gateway’s web interface in any web browser.
- Go to the Configuration page.
- Select any slave port for the RS232 communication.
- Specify the following parameters:
- Type: Serial.
- Com port: RS-232.
- Baud rate: The specified communication speed on the RS232 bus.
- Bit Number: Number of data bits on the RS232 bus.
- Parity: The parity for the RS232 bus.
- Stop Bit: Number of stop bits on the RS232 bus.
- Timeout: Expected time to get answer from the M-Bus meter.
- Protocol: The data protocol on the RS232 bus.
- Press the Save settings.
- Connect the RS232-cable to the RS232-connection on the gateway:
- PiiGAB M-Bus 900: Pins 10-12.
- PiiGAB M-Bus 900S: Pins 11-13.
The picture shows Slave port 2 is configured for RS232 on 2400 baud, 8 data bits, even parity, 1 stop bit, 2000ms as timeout and M-Bus communication.
Note:
- Make sure the gateway doesn’t use the RS232-port anywhere else. For instance any other slave ports or the Modbus2MBus and/or the Wireless applications.
- The RX and TX pins should likely go to the opposite pins on the unit.
For example: RX->TX and TX->RX.
Category
PiiGAB 900S/T
0
0
The following list instructs how to configure a PiiGAB M-Bus 900/900S so that M-Bus meters can be read with RS485.
- Start the gateway’s web interface in any web browser.
- Go to the Configuration page.
- Select any slave port for the RS485 communication.
- Specify the following parameters:
- Type: Serial.
- Com port: RS-485.
- Baud rate: The specified communication speed on the RS485 bus.
- Bit Number: Number of data bits on the RS485 bus.
- Parity: The parity for the RS485 bus.
- Stop Bit: Number of stop bits on the RS485 bus.
- Timeout: Expected time to get answer from the M-Bus meter.
- Protocol: The data protocol on the RS485 bus.
- Press the Save settings.
- Connect the RS485-cable to the the gateways pin 8 (A) and 9 (B).
The picture shows Slave port 2 is configured for RS485 on 2400 baud, 8 data bits, even parity, 1 stop bit, 2000ms as timeout and M-Bus communication.
Note:
- Make sure the gateway doesn’t use the RS485-port anywhere else. For instance any other slave ports or the Modbus2MBus and/or the Wireless applications.
- The A and B pins should likely go to the opposite A and B on the RS485 master.
For example: A->A and B->B.
Category
PiiGAB 900S/T,
RS485 converter - Viltrus
0
0
If the search of secondary addresses failes in the PiiGAB M-Bus Setup Wizard through a PiiGAB M-Bus 900/900S then the timeouts are probably set too high.
There are four timeouts that are required to configure:
- MBusHub Master port in PiiGAB M-Bus 900/900S.
- MBusHub slave port in PiiGAB M-Bus 900/900S.
- SND_NKE/SND_UD timeout in PiiGAB M-Bus Setup Wizard.
- RSP_UD2 timeout in PiiGAB M-Bus Setup Wizard
This table shows how to configure the tiemouts depending on the communication speed:
| 300 baud rate | 2400 baud rate | 9600 baud rate | |
| Master port | 9600ms | 1300ms | 400ms |
| Slave port | 9600ms | 1300ms | 400ms |
| SND_NKE | 11000ms | 1500ms | 600ms |
| REQ_UD2 | 11000ms | 1500ms | 600ms |
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
0
If the search of secondary addresses failes in the PiiGAB M-Bus Setup Wizard through a PiiGAB M-Bus 900/900S then the timeouts are probably set too high.
There are four timeouts that are required to configure:
- MBusHub Master port in PiiGAB M-Bus 900/900S.
- MBusHub slave port in PiiGAB M-Bus 900/900S.
- SND_NKE/SND_UD timeout in PiiGAB M-Bus Setup Wizard.
- RSP_UD2 timeout in PiiGAB M-Bus Setup Wizard
This table shows how to configure the tiemouts depending on the communication speed:
| 300 baud rate | 2400 baud rate | 9600 baud rate | |
| Master port | 9600ms | 1300ms | 400ms |
| Slave port | 9600ms | 1300ms | 400ms |
| SND_NKE | 11000ms | 1500ms | 600ms |
| REQ_UD2 | 11000ms | 1500ms | 600ms |
Category
PiiGAB 900S/T,
PiiGAB Wizard
1
0
If the converter is set to static IP address, a name server must be specified. This is done on the PiiGAB M-Bus 900 configuration page and in Name Server static IP address field.
Category
PiiGAB 900S/T
0
0
Make sure the computer and the gateway are configured within the same IP-address range. If the gateway is placed in a subnet, the PiiGAB M-Bus Setup Wizard will not be able to find the gateway.
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0
Make sure the computer and the gateway are configured within the same IP-address range. If the gateway is placed in a subnet, the PiiGAB M-Bus Setup Wizard will not be able to find the gateway.
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
1
There are two possible cases when the Pwr LED is flashing.
- Short circuit on the M-Bus loop indicates by a hastily red flash (5 flashes/second)
- Overload indication on the M-Bus loop indicates by a slow orange flash (1 flash/second)
Category
PiiGAB 900S/T
1
0
In the event where the M-Bus loop is connected to the pulse port by mistake instead of the M-bus port on a meter a flash can occur every time a pulse goes trough. If the meter generates many pulses the power light will flash very fast as the pulses go through.
Category
PiiGAB 900S/T,
PiiGAB 810
0
0
The gauges in the Overview page of the web interface have three different status modes.
These do not change automatically but require the user to test the status via the Verify function which tests all meters that are Red or via the Read All Meters function which sends a query to all listed meters to see if they are connected.
Category
PiiGAB 900S/T
0
0
A client is something which requests the data from the M-Bus meter through the gateway.
Category
PiiGAB 900S/T
0
0
The license depends on the number of load units, clients, protocols and hardware add-ons for which the converter is to be configured.
Quantity of M-Bus loads: 5, 20, 60 eller 120.
Quantity of clients: 1, 2 or 4.
Protocols:
- MBus2MBus
- MBus2Modbus
- MBus2MBusASCII
- QuickPost
- Modbus2MBus.
- Wireless M-Bus
Category
PiiGAB 900S/T
0
0
- For M-Bus communication the default port are 10001, 10002, 10003 and 10004. The port numbers can be changed with the gateway’s web interface.
- To find the gateway on the network port 30718 is used with UDP in PiiGAB M-Bus Setup wizard.
Category
PiiGAB 900S/T
0
0
Port 30718 over UDP/IP is used in the following functions:
- Find converters on the network.
- Change the IP settings of the converter.
- Change the parameters of the converter.
Other functions in the PiiGAB M-Bus Wizard you specify yourself which port and protocol to use.
Specific to Find converters on the network
Functions Find gateways on your network. uses the broadcast address (255.255.255.255) to find the PiiGAB M-Bus 810 and PiiGAB M-Bus 900/900S on the network. Keep in mind that broadcast may be disabled in routers. This can cause not being able to find converters that are placed on other subnets.
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
0
PiiGAB 810 (5)
Check that the supply voltage (24VAC / DC) to the converter is fully isolated from other products in your control panel. Also check the ground on the primary and secondary sides of the protection transformer so that they are not interconnected.
Category
PiiGAB 900S/T,
PiiGAB 810
0
0
To troubleshoot M-Bus meters connected to an PiiGAB M-Bus 810 there are a couple of things to verify.
Here is a list of good tools to use during troubleshooting:
- PiiGAB M-Bus Wizard
- Getting started PiiGAB M-Bus 810
- MicroMaster USB
- PiiGAB's general M-Bus documentation
IP-address
What IP-address is the gateway using? To have network communication with the gateway you need to setup your computer in the same network as the gateway. If there is an IT section please contact them to receive an IP-address for your computer. With the PiiGAB M-Bus Setup Wizard you can search gateways on the network or ping the gateway’s IP-address to verify if the network communication works.
In the PiiGAB M-Bus Wizard, you can search for converters on the network or "ping" the IP address of the converter to verify that the network connector is working.
f it’s not possible to receive the gateway’s IP-address then you need to setup a new IP-address.
Please see the FAQ on how to do this.
Harbour
What port is the gateway set to in order for the the M-Bus client to read the M-Bus meters? If you have network connection with the gateway you can find out the port with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Protocol
What protocol is the gateway set to in order for the the M-Bus client to read the M-Bus meters? If you have network connection with the gateway you can find out the protocol with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Note: If the gateway uses TCP you might not be able to connect to the gateway with the PiiGAB M-Bus Setup Wizard to read the M-Bus meters. This is due to that another client is connected to the port that the gateway is using. Change the port, change to UDP or turn off the client.
Communication speed
What communication speed is the gateway set to in order for the the M-Bus client to read the M-Bus meters?If you have network connection with the gateway you can find out the communication speed with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Note: If the gateway is set to 300 baud the communication speed is very slow. Remember to change the timeout in the PiiGAB M-Bus Setup Wizard to handle the long response time.
M-Bus meters
Is there any documentation of what M-Bus meters that are connected to the gateway? What addresses does the M-Bus meters use? (primary or secondary addresses).
If there is documentation of the meters then you can simple check each meter one by one with the PiiGAB M-Bus Setup Wizard. It’s also possible to read the search function in the PiiGAB M-Bus Setup Wizard.
If there is no documentation of the meters then you can use the search function in the PiiGAB M-Bus Setup Wizard. If the the result of the search function is incomplete then you have to find each meter one by one on the site and test them individually by it’s M-Bus address (primary or secondary address).
A M-Bus meter not responding
If an M-bus meter is not responding then you have to test the meter individually. If possible disconnect all other meters and test only that specific meter. Try with primary address 254 or the meter’s own primary or secondary address.
If it’s not possible to disconnect all meters then you can test the specific meter with a MicroMaster USB.
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0
If you are using TCP and the M-Bus Wizard at the same time you cannot make contact with an additional TCP client since the M-Bus Wizard “owns” the TCP handle. Shut down the M-Bus Wizard before starting the second TCP client. The same goes if you are using COM ports.
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0
Make sure the computer and the gateway are configured within the same IP-address range. If the gateway is placed in a subnet, the PiiGAB M-Bus Setup Wizard will not be able to find the gateway.
0
0
In the event where the M-Bus loop is connected to the pulse port by mistake instead of the M-bus port on a meter a flash can occur every time a pulse goes trough. If the meter generates many pulses the power light will flash very fast as the pulses go through.
Category
PiiGAB 900S/T,
PiiGAB 810
0
0
PiiGAB Wizard (10)
Some meters do not handle SND_NKE together with REQ_UD2. Untick the SND_NKE option and the meters should respond.
Category
PiiGAB 900S/T,
PiiGAB Wizard
0
0
To troubleshoot M-Bus meters connected to an PiiGAB M-Bus 810 there are a couple of things to verify.
Here is a list of good tools to use during troubleshooting:
- PiiGAB M-Bus Wizard
- Getting started PiiGAB M-Bus 810
- MicroMaster USB
- PiiGAB's general M-Bus documentation
IP-address
What IP-address is the gateway using? To have network communication with the gateway you need to setup your computer in the same network as the gateway. If there is an IT section please contact them to receive an IP-address for your computer. With the PiiGAB M-Bus Setup Wizard you can search gateways on the network or ping the gateway’s IP-address to verify if the network communication works.
In the PiiGAB M-Bus Wizard, you can search for converters on the network or "ping" the IP address of the converter to verify that the network connector is working.
f it’s not possible to receive the gateway’s IP-address then you need to setup a new IP-address.
Please see the FAQ on how to do this.
Harbour
What port is the gateway set to in order for the the M-Bus client to read the M-Bus meters? If you have network connection with the gateway you can find out the port with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Protocol
What protocol is the gateway set to in order for the the M-Bus client to read the M-Bus meters? If you have network connection with the gateway you can find out the protocol with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Note: If the gateway uses TCP you might not be able to connect to the gateway with the PiiGAB M-Bus Setup Wizard to read the M-Bus meters. This is due to that another client is connected to the port that the gateway is using. Change the port, change to UDP or turn off the client.
Communication speed
What communication speed is the gateway set to in order for the the M-Bus client to read the M-Bus meters?If you have network connection with the gateway you can find out the communication speed with the PiiGAB M-Bus Setup Wizard.
Start the PiiGAB M-Bus Wizard -> Change converter parameters -> Connect via network.
Note: If the gateway is set to 300 baud the communication speed is very slow. Remember to change the timeout in the PiiGAB M-Bus Setup Wizard to handle the long response time.
M-Bus meters
Is there any documentation of what M-Bus meters that are connected to the gateway? What addresses does the M-Bus meters use? (primary or secondary addresses).
If there is documentation of the meters then you can simple check each meter one by one with the PiiGAB M-Bus Setup Wizard. It’s also possible to read the search function in the PiiGAB M-Bus Setup Wizard.
If there is no documentation of the meters then you can use the search function in the PiiGAB M-Bus Setup Wizard. If the the result of the search function is incomplete then you have to find each meter one by one on the site and test them individually by it’s M-Bus address (primary or secondary address).
A M-Bus meter not responding
If an M-bus meter is not responding then you have to test the meter individually. If possible disconnect all other meters and test only that specific meter. Try with primary address 254 or the meter’s own primary or secondary address.
If it’s not possible to disconnect all meters then you can test the specific meter with a MicroMaster USB.
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Only PiiGAB M-Bus 900 V2.XX.XX.XXX or later versions support the function where the IP address can be changed with the PiiGAB M-Bus Wizard.
Category
PiiGAB 900S/T,
PiiGAB Wizard
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Both PiiGAB M-Bus 900 V2 and PiiGAB M-Bus 900S can change their IP address with the PiiGAB M-Bus Wizard.
Keep in mind that the netmask and default gateway will not be set. These need to be set in the converter's web interface. Please read it under the FAQ section "Example of initial contact"
Category
PiiGAB 900S/T,
PiiGAB Wizard
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If you are using TCP and the M-Bus Wizard at the same time you cannot make contact with an additional TCP client since the M-Bus Wizard “owns” the TCP handle. Shut down the M-Bus Wizard before starting the second TCP client. The same goes if you are using COM ports.
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If the search of secondary addresses failes in the PiiGAB M-Bus Setup Wizard through a PiiGAB M-Bus 900/900S then the timeouts are probably set too high.
There are four timeouts that are required to configure:
- MBusHub Master port in PiiGAB M-Bus 900/900S.
- MBusHub slave port in PiiGAB M-Bus 900/900S.
- SND_NKE/SND_UD timeout in PiiGAB M-Bus Setup Wizard.
- RSP_UD2 timeout in PiiGAB M-Bus Setup Wizard
This table shows how to configure the tiemouts depending on the communication speed:
| 300 baud rate | 2400 baud rate | 9600 baud rate | |
| Master port | 9600ms | 1300ms | 400ms |
| Slave port | 9600ms | 1300ms | 400ms |
| SND_NKE | 11000ms | 1500ms | 600ms |
| REQ_UD2 | 11000ms | 1500ms | 600ms |
Category
PiiGAB 900S/T,
PiiGAB Wizard
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If the search of secondary addresses failes in the PiiGAB M-Bus Setup Wizard through a PiiGAB M-Bus 900/900S then the timeouts are probably set too high.
There are four timeouts that are required to configure:
- MBusHub Master port in PiiGAB M-Bus 900/900S.
- MBusHub slave port in PiiGAB M-Bus 900/900S.
- SND_NKE/SND_UD timeout in PiiGAB M-Bus Setup Wizard.
- RSP_UD2 timeout in PiiGAB M-Bus Setup Wizard
This table shows how to configure the tiemouts depending on the communication speed:
| 300 baud rate | 2400 baud rate | 9600 baud rate | |
| Master port | 9600ms | 1300ms | 400ms |
| Slave port | 9600ms | 1300ms | 400ms |
| SND_NKE | 11000ms | 1500ms | 600ms |
| REQ_UD2 | 11000ms | 1500ms | 600ms |
Category
PiiGAB 900S/T,
PiiGAB Wizard
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Make sure the computer and the gateway are configured within the same IP-address range. If the gateway is placed in a subnet, the PiiGAB M-Bus Setup Wizard will not be able to find the gateway.
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Make sure the computer and the gateway are configured within the same IP-address range. If the gateway is placed in a subnet, the PiiGAB M-Bus Setup Wizard will not be able to find the gateway.
Category
PiiGAB 900S/T,
PiiGAB Wizard
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Port 30718 over UDP/IP is used in the following functions:
- Find converters on the network.
- Change the IP settings of the converter.
- Change the parameters of the converter.
Other functions in the PiiGAB M-Bus Wizard you specify yourself which port and protocol to use.
Specific to Find converters on the network
Functions Find gateways on your network. uses the broadcast address (255.255.255.255) to find the PiiGAB M-Bus 810 and PiiGAB M-Bus 900/900S on the network. Keep in mind that broadcast may be disabled in routers. This can cause not being able to find converters that are placed on other subnets.
Category
PiiGAB 900S/T,
PiiGAB Wizard
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Quickpost (2)
The following list will explain how to install a license in the PiiGAB M-Bus 900/900S. These steps will also show the current license of a PiiGAB M-Bus 900/900S.
- Start the gateway’s web interface in any web browser.
- Go to the Administrations page.
- Under the Basic Settings tab you will find the section License. This shows the licence of the converter (SW 2.5.0 or higher)
- Paste the license into the field Update licence.
- Press the button Update.
- Wait for the license to be installed.
Category
PiiGAB 900S/T,
Quickpost
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The following list will explain how to install software in the PiiGAB M-Bus 900 V2 and PiiGAB M-Bus 900S. These steps are either used to install a new software or update an existing.
- Download the software as a ZIP file, please click here.
- Unzip the file to gain access to the tgz-file.
- Place the tgz-file somewhere on the computer. Don’t open the tgz-file.
- Start the web interface for the gateway in any browser.
- Go to the Administration page.
- Find the section Update Software.
- Press the Browse… button.
- Browse to and select the tgz-file.
- Press the button Install.
- Wait until the installation has finished.
Note: If QuickPost, Modbus2MBus or Wireless M-Bus is not shown in the web browser, please press CTRL + F5.
Category
PiiGAB 900S/T,
Quickpost
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PiiGAB Explorer (1)
Quick start Guide to Configure M-Bus to Modbus
1. Plug all the meters you want to use on the M-bus loop into Mbus Master ports 1-4 on your Gateway.
2. Search your meters in the web interface using a "Fast Search" in the Startup Config tab
Your meters should appear in a list under the "Fast Search" button
3. Go to the overview page in Startup Config where the meters should now be visible in the list below.
Add Encryption Keys to the meters if they are Wireless meters
4. Click on "Auto-Create Myconfig files"
The files to be used to read meters are now created
5. Go to MbusHub and the tab "Master port", then select the configuration file for the Master port file as shown below. Save the configuration.
6. Go to Slave Port 1 and select the configuration file as shown below
7. Now you will be able to query against the registry entries described in the CSV file located in the slave ports tab of the web interface
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Modbus2Mbus (2)
Quick start Guide to Configure M-Bus to Modbus
1. Plug all the meters you want to use on the M-bus loop into Mbus Master ports 1-4 on your Gateway.
2. Search your meters in the web interface using a "Fast Search" in the Startup Config tab
Your meters should appear in a list under the "Fast Search" button
3. Go to the overview page in Startup Config where the meters should now be visible in the list below.
Add Encryption Keys to the meters if they are Wireless meters
4. Click on "Auto-Create Myconfig files"
The files to be used to read meters are now created
5. Go to MbusHub and the tab "Master port", then select the configuration file for the Master port file as shown below. Save the configuration.
6. Go to Slave Port 1 and select the configuration file as shown below
7. Now you will be able to query against the registry entries described in the CSV file located in the slave ports tab of the web interface
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Conversion of Modbus meters to M-Bus is done in the program Modbus2Mbus Config. You can find this for download at https://www.piigab.com/products/mjukvara/
In order to have a simple and trouble-free conversion, it is important to have the meter's manual available.
Create a new project and then add a device per meter.
Set the parameters for Mbus and Modbus communication
Add objects for each measured value to be read out and set the correct Modbus register as well as unit and scaling.
If you have several meters of each type, copy the meter and only change the Slave and M-Bus address.
It is also possible to save these as templates for future projects.
After the project is finished, it is saved and then uploaded to the 900
Category
PiiGAB 900S/T,
Modbus2Mbus
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RS485 converter - Viltrus (2)
If the communication does not work, check that no other process locks that port.
Check that Modbus2Mbus or any slave port is not set to RS485.
Also enable RS-485 Failsafe in MBushub for more stable collection.
Category
PiiGAB 900S/T,
RS485 converter - Viltrus
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The following list instructs how to configure a PiiGAB M-Bus 900/900S so that M-Bus meters can be read with RS485.
- Start the gateway’s web interface in any web browser.
- Go to the Configuration page.
- Select any slave port for the RS485 communication.
- Specify the following parameters:
- Type: Serial.
- Com port: RS-485.
- Baud rate: The specified communication speed on the RS485 bus.
- Bit Number: Number of data bits on the RS485 bus.
- Parity: The parity for the RS485 bus.
- Stop Bit: Number of stop bits on the RS485 bus.
- Timeout: Expected time to get answer from the M-Bus meter.
- Protocol: The data protocol on the RS485 bus.
- Press the Save settings.
- Connect the RS485-cable to the the gateways pin 8 (A) and 9 (B).
The picture shows Slave port 2 is configured for RS485 on 2400 baud, 8 data bits, even parity, 1 stop bit, 2000ms as timeout and M-Bus communication.
Note:
- Make sure the gateway doesn’t use the RS485-port anywhere else. For instance any other slave ports or the Modbus2MBus and/or the Wireless applications.
- The A and B pins should likely go to the opposite A and B on the RS485 master.
For example: A->A and B->B.
Category
PiiGAB 900S/T,
RS485 converter - Viltrus
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