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Connecting to the RS-232C Port at the Host Section 4-1
Using the CPU Unit's Built-in RS-232C Port
*1
Set any value between 0000 and 0009 Hex for the communications baud
rate. The same baud rate will be used regardless of the value as long as it
is between 0000 and 0009 Hex.
Using the CPU Unit's Peripheral Port
*1
Set any value between 0000 and 0009 Hex for the communications baud
rate. The same baud rate will be used regardless of the value as long as it
is between 0000 and 0009 Hex.
When connecting PT with its model number 0, 2-5 to the built-in RS-232C
port, for example, set the value 8200 Hex to 160 CH, and 0005 Hex to 166CH.
Either set PLC Setup directly from a Programming Device (Programming Con-
sole), or transmit the PLC Setup made at a Programming Device (CX-Pro-
grammer) to the CPU Unit.
For details on the PLC Setup, refer to the SYSMAC CS Series Operation
Manual (W339) or the SYSMAC CJ Series Operation Manual (W393).
Setting the Front Switches
Set the CPU Unit’s DIP switch to 4 or 5 in accordance with the port NT631/
NT631C is connected to. An example of a CS-series CPU Unit is shown
below.
Connecting to CS-series Serial Communications Board
Serial Communications Board equipped with a RS-232C port for CS1-series
CPU Units: CS1W-SCB21(-V1)/41(-V1) (See note.)
Word # Writing Value Settings
160 8200 NT link (1:N) mode
161
0000 to 0009
(*1)
Communications baud rate (standard)
166 000@@ = The largest model number of the con-
nected PT (0 – 7)
Word # Writing Value Settings
144 8200 NT link (1:N) mode
145
0000 to 0009
(*1)
Communications baud rate (standard)
150 000@@ = The largest model number of the con-
nected PT (0 – 7)
Peripheral port
RS-232 port
DIP switches (inside the battery storage)
SYSMAC CS1G
PROGRAMMABLE CONTROLLER
CPU42
OPEN
OPEN
PERIPHERAL
PORT
BUSY
RUN
ERR/ALM
INH
PRPHL/COMM
MCPWR
• Set SW5 to OFF (establishing communications in
accordance with PLC Setup) when connecting the
NT631/NT631C to a peripheral port.
• Set SW4 to ON (establishing communications in
accordance with PLC Setup) when connecting the
NT631/NT631C to a peripheral port.
This is used mainly for
connection to the
Programming Device.
(This also supports the
RS-232C unit connection.)
This is used mainly
for connection to the
RS-232C unit.
(This also supports
the CX-Programmer.)