Section IV – Diagrams
MNET Board
CN1
CN2
1 Tx-
2 Tx+
3 Rx+
4 Rx-
5
6
7
8
9
10
1
2
3
4
5
Promass
26
TX + / RX +
27
TX - / RX -
Figure 21. Promass Coriolis Meter Communications (RS485)
Programming
Parameter microLoad Promass
Baud Rate
Parity 8/No Parity/2 Stop bits No Parity, 2 Stop bits
Modbus Endian Big
Sequence Number 1 Address 1
Mass Meter Type
Timeout 0
Transmission Mode RTU
Reply delay 10mS
Mode
Note: Wiring example is shown on comm 2: comm 3 can be used as well.
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