141
Serial Communications Board
Section 2-6
2-5-7
Application Procedure
2-6
Serial Communications Board
This section provides an introduction to the Serial Communications Board.
Detailed information can be found in the
Serial Communications Board Oper-
ation Manual
(W365).
2-6-1
Model Number
2-6-2
Serial Communications Boards
The Serial Communications Board is an Inner Board for the CQM1H-series
PCs. One Board can be installed in Inner Board slot 1 of a CQM1H-series
CPU Unit. The Board cannot be installed in slot 2.
The Board provides two serial communications ports for connecting host com-
puters, Programmable Terminals (PTs), general-purpose external devices,
and Programming Devices (excluding Programming Consoles). This makes it
possible to easily increase the number of serial communications ports for a
CQM1H-series PC.
Determine analog input ranges and
number of inputs.
Determine analog output ranges and
number of outputs.
Wire analog inputs and analog outputs.
PC Setup
(DM 6611)
Ladder Program
0 to 5 V and 0 to 20 mA analog inputs are se-
lected by the terminals connected.
0 to 5 V and 0 to 20 mA analog outputs are
selected by the terminals connected.
Set signal ranges for analog inputs.
Set whether or not to use analog inputs.
Analog inputs: Read converted values.
Analog outputs: Write settings.
Name
Model
Specifications
Serial Communications Board
CQM1H-SCB41 One RS-232 port
One RS-422A/485 port
Port 2: RS-422A/485
Port 1: RS-232C
