4
4.1
Part. no.
179 675-100
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05/08
05/08
Plug Assignment/Bus Termination/Cable
RS232 module CM-232
Bus Connector X310 CM-232 (9p Sub-D)
pin
name
Housing
Shield
–
1
2
RxD
3
TxD
–
4
0 V
5
–
6
–
7
–
8
–
9
If no pre-assembled connection cable is used for the RS232 connection, a twisted
and shielded cable is to be used
1:1 assignment of the pin contacts
The shield must be a harness shield (not a foil shield)
The shield is to be connected to PE properly on both sides
Modbus Instruction manual
Modbus Instruction manual
The RS232 interface is connected to a PC or a
controller via the 9-pin D-Sub socket X310. The
assignment complies with the standard, thus a
RS232 connection cable (1:1) is required for con-
nection only.
X310
connected with PE
n. c.
receive Data
(input)
transmit Data
(output)
n. c.
Ground
n. c.
n. c.
n. c.
n. c.
function
11
11
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