14-27
14 Serial Communications
CP2E CPU Unit Software User’s Manual(W614)
14-5 Serial PLC Links
14
14-5-1 Overview
14-5 Serial PLC Links
Serial PLC Links enable exchanging data between CP2E CPU Units, CP1H/CP1L/CP1E CPU Units, or
CJ2M CPU Units without using special programming. The serial communications mode is set to Serial
PLC Links. Up to 9 PLCs can be linked.
z Connecting CP2E, CP1H, CP1L, CP1E or CJ2M CPU Units 1:N (8 Nodes
Maximum)
z Connecting CP2E, CP1H, CP1L, CP1E or CJ2M CPU Units 1:1
Precautions for Correct UsePrecautions for Correct Use
With the CP2E CPU Units, a Programmable Terminal (PT) cannot be included in a Serial PLC
Link.
14-5-1 Overview
Configuration
RS-422A/485
CP2E CPU Unit (Polling Unit)
RS-422A/485 Option Board
or Built-in RS-485 Port
Shared data
CP2E CPU Unit
(Polled Unit)
CJ2M CPU Unit
(Polled Unit)
CP1L
CPU Unit
(Polled Unit)
8 nodes maximum
CP2E CPU Unit
(Polling Unit)
RS-232C or RS422A/485
Shared data
CP1E or
CP1L CPU
Unit (Polled
Unit)