Omron CPM1A

Functions
21
1:1 Links
With a 1:1 link, two CPM1As or a CPM1A and CQM1 or C200Hj are connected 1:1 with one side as the Master and the other as the
Slave to provide an I/O link of a maximum of 256 points (LR 0000 to LR 1515).
Example of a 1:1 Link between CPM1As
Link bits
WRITE area
READ area
LR 00
LR 07
LR 08
LR 15
WRITE
READ
READ area
WRITE area
LR 00
LR 07
LR 08
LR 15
READ
WRITE
Link bits
CPM1A CPU
RS-232C Adapter CPM1A CPU
RS-232C Cable
RS-232C Adapter
Master Slave
Limitations of the CPM1A 1:1 Link
CPM1A I/O links are limited to 16 words (LR 00 to LR 15). Therefore, use these 16 words (LR 00 to LR 15) on the CQM1 or C200Hj
side when forming 1:1 links with a CQM1 or C200Hj.
NT Links
High-speed communications can be achieved by providing a direct access through the use of the NT Link between the CPM1A and
Programmable Terminal.
Programmable Terminal
RS-232C Cable
CPM1A CPU
RS-232C
Adapter