T H E M O D E R M - B U S T E C H N O L O Y
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6.2
Master Port configuration
Figure 6-8
The master port is the part in the gateway that sends out data to destined port. The PiiGAB
M-Bus 900S/T has the possibility to send data to Ethernet and M-Bus master. The basic setting
for the master port is shown below:
Table 6-1
Type
Com port
Baudrate
Timeout (ms)
Reconnect (s)
Protocol
Serial
M-Bus Master
2400
2000
1000
M-Bus
At the front of the gateway a flashing light on the M leds (Tx/Rx) indicate the master traffic.
The first choice to be made is whether to run it serial or via the UDP/TCP on the master port.
6.2.1
Type Serial
If serial communication is chosen the following parameters will be eligible:
Table 6-2
6.2.1.1
Com port
The setting M-
Bus master for ”Com port” sends traffic to
the internal built in M-Bus master.
6.2.1.2
Baud rate
The baud rate can be set to 300, 1200, 2400, 4800, 9600, 19200 and 38400 baud. Normally
2400 is used for M-Bus but 300 and 9600 also occurs on certain meters.
Type
Com port
Baudrate
Timeout (ms)
Reconnect (s)
Protocol
Serial
M-Bus Master
2400
2000
1000
M-Bus