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Setting the Front Switches
I/O port selector switch
C-series C200HX/HG/HE(-Z)E, CPM1, CPM2A, CPM2C, CQM1H, CPU Unit
or SRM1
The connection method depends upon the model of PLC being used, as shown in the
following table.
PLC model
C200HX/HG/HE(-Z)E
CQM1H
CPM1
CPM2A, SRM1
CPM2C
Reference
• I/O port selection (selector switch)
Set this to RS-422A.
• Communication type setting (DIP SW3)
Set SW3 to OFF.
(for host link communication)
• Host link default value settings
(DIP SW4)
To effect the existing DIP switch settings,
set SW4 to ON.
To effect the values set in the PC Setup,
set SW4 to OFF.
Note
For CPUs manufactured before or
during June 1995 (lot No. @@65), the
existing DIP switch settings differ from
the PC Setup default values as follows.
- Existing DIP switch settings:
2,400 bps, 1 stop bit, even parity, 7 bit
data length
- PC Setup default values:
9,600 bps, 2 stop bits, even parity, 7
bit data length
For CPUs manufactured from July 1995
onward (lot No. @@75), the stipulated
values in the DIP switch settings also
are 9600 bps and 2 stop bits.
• Terminator setting (DIP SW6)
Set this switch to ON.
(Set terminator ON.)
• Connect to the RS-422A port (port A) on a Communications Board.
• Connect to the RS-422A port (port 2) on a Serial Communications
Board.
• Connect to the peripheral port through a CPM1-CIF11 RS-422A
Adapter.
• Connect to the peripheral port through a CPM1-CIF11 RS-422A
Adapter.
• Connect to the peripheral port (on a CPM2C-CN111 or
CS1W-CN114 Connecting Cable) through a CPM1-CIF11 RS-422A
Adapter.
(The CPM2C-CN111 splits the Unit's communications port into a
RS-232C port and a peripheral port.)
• There are no Communications Boards for the
C200HX/HG/HE(-Z)E in which port B is the RS-422A port.
• There are no Serial Communications Boards for the
CQM1H in which port 1 is the RS-422A port.
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Connection method
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