ProSoft Technology 5202-DFNT-MCM4 - Manual (Page 18)

MCM ♦ ProLinx Gateway MCM Protocol Configuration
Modbus Master/Slave Driver Manual
Page 18 of 80
ProSoft Technology, Inc.
October 16, 2009
3.1 [Modbus Port x]
The [Modbus Port x] sections of the CFG file, where x stands for 0, 1, 2, or 3, set
the Modbus Master and slave port communication parameters and define the
protocol-specific settings.
3.1.1 Enabled
Y ES or N O
This flag specifies if the port on the gateway will be utilized. If the parameter is
set to N
O , the port will not be used. If the parameter is set to Y ES , the port will be
used.
3.1.2 RS Interface
0 = RS-232
1 = RS-485
2 = RS-422
This parameter is used when Ports 1, 2, and 3 are present to configure the
electrical interface for these ports.
RS Interface selections for Port 0 are done with a jumper (electrical shunt) on the
back of the gateway.
3.1.3 Type
M ASTER or S LAVE
This parameter defines if the port will emulate a Master or slave device. Choose
a value of M
ASTER to make the port function as a Modbus Master. Choose S LAVE
to make the port function as a Modbus slave.