Omron CP1L - 12-2007, Operation Manual

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362
Serial Communications
Section 6-3
CP1L is set as the link master, so CIO 3000 to CIO 3007 are its write area.
Any data written to these words with the OUT or MOV instructions will be
automatically transferred to LR 00 to LR 07 in the CPM2A. The CPM2A will
use these words as its read area.
CIO 3008 to 3015 are the read area of the CP1L. The contents of LR 08 to
LR 15 in the CPM2A will automatically be transferred to CIO 3008 to 3015 in
the CP1L. The words in the PLC’s read area cannot be written using the OUT,
MOV, or any other write instructions.
6-3-7 1:N NT Links
In the CP Series, communications are possible with PTs (Programmable Ter-
minals) using NT Links in 1:N mode.
Note Communications are not possible using the 1:1-mode NT Link protocol.
High-speed NT Links are possible in addition to the previous standard NT
Links by using the PT system menu and the following PLC Setup. High-speed
NT Links are possible, however, only with NS-series PTs or with the NT31(C)-
V2 or NT631(C)-V2 PTs.
1:1 Link
RS-232C
1:1 Link Area
CIO 3000
CIO 3007
CIO 3008
CIO 3015
CIO 3016
CIO 3063
Write area
Read area Write area
Read area
Not used.
LR 00
LR 07
LR 08
LR 15
Link Master: CP1L CPU Unit
Link Master:
CP1L CPU Unit
Link Slave: CPM2A CPU Unit
Link Slave:
CPM2A CPU Unit
CP1L CPU Unit
NS-series or NT31/NT631(C)-V2 PT
RS-232C
1:N NT Link
NS-series or NT31/NT631(C)-V2 PT
RS-422A/485
1:N NT Links CP1L CPU Unit