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When using a CQM1H
Word #
Writing Value
DM6550
0001
DM6551
0303
0304
DM6553
0000
Connecting to a CPM2C
The CPM2C PLCs do not have the same kind of port connectors found on CS-series PLCs.
The CPM2C's communications port handles both RS-232C and peripheral port connections
which are divided internally. Therefore, when using the CPM2C, it is necessary to select
RS-232C or peripheral port connections, according to the kind of cable and port (on the
cable) used, as shown in the following table. Refer to the CPM2C Operation Manual for more
details.
Peripheral port
RS-232C port
(D-Sub 9-pin, female)
Setting Switches on a C200HX/HG/HE(-Z)E Communications Board
Set the switches on a C200HX/HG/HE(-Z)E Communications Board as follows.
Switch 1: Set to 4 (4-wire type, for RS-422A)
Switch 2: Set to ON for terminator ON (termination resistance applied)
Setting Switches on a CQM1H Serial Communications Board
Set the switches on a CQM1H Serial Communications Board as follows.
2-wire/4-wire selection (WIRE): Set to 4 (4-wire type, for RS-422A)
Terminator (TERM): Set to ON for termination ON (termination resistance applied).
Serial Communications Board
(Inner Board slot 1)
Terminator Switch (TERM)
Set to ON (right side).
2-wire/4-wire Selection Switch
(WIRE)
Set to 4 (right side).
Host link mode, no CTS control, communications
conditions set by the contents of DM area
Data length 7 bits, 2 stop bits, even parity,
communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity,
communications speed: 19200 bps
Unit # 00
Peripheral port
29
Settings
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