Omron NT11 - 01-2004, User Manual

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Connection to a PLC by the Host Link (RS-422A Type)
Section 2-5
When using a CQM1H
Connecting to a CPM2C
Only the CPM2C PLCs do not have the same kind of port connectors found
on CS/CJ-series PLCs. The CPM2C’s communication 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.
Setting Switches on a C200HX/HG/HE(-Z)E Serial Communications Board
Set the switches on a C200HX/HG/HE(-Z)E Serial Communications Board as
follows.
Switch 1:Set to 4 (4-wire, for RS-422A)
Switch 2:Set to ON for terminator ON (terminating resistance applied)
Setting Switches on a CQM1H Serial Communications Board
Set the switches on a CQM1H Serial Communications Board as follows.
Wire selection (WIRE): Set to 4 (4-wire, for RS-422A)
Terminator (TERM): Set to ON for termination ON.
Word Writing Value Settings
DM6550 0001 Host Link mode, no CTS control
Communication conditions set by the contents of DM
DM6551 0303 Data length 7 bits, 2 stop bits, even parity, baud rate:
9,600 bps
0304 Data length 7 bits, 2 stop bits, even parity, baud rate:
19,200 bps
DM6553 0000 Unit # 00
Peripheral port
RS-232C port
(D-Sub 9-pin, female)
CPM2C-CN111
CPM2C CPM2C
Peripheral port
CS1W-CN114
Serial Communications Board
(Inner Board slot 1)
Terminator Switch (TERM)
Set to ON (right side).
Wire Selection Switch (WIRE)
Set to 4 (right side).