Programming; Connection Examples - Omron NX-series User Manual

4-3-4

Programming

Assign the user-defined variables that is used in the user program on the CPU Unit to the memory used
for CJ-series Units that will be accessed by the E5C Controller by using AT specification.
Then, create the user program for communicating with the E5C Controller.
The user program gets the E5C Controller status from the upload area of the E5C Controller and
sends commands to the download area of the E5C Controller.
Refer to the NJ/NX-series CPU Unit Software User's Manual (Cat. No. W501) for memory used for
CJ-series Units and AT specification.
4-3-5

Connection Examples

An example of connecting three E5CC Controllers is given below.
NX1P2 CPU Unit
For an NX1W-CIF11
SW1
RDA- RDB+ SDA- SDB+ SHLD
Refer to the E5

on wiring an E5C Controller.
NX-series NX1P2 CPU Unit Built-in I/O and Option Board User's Manual (W579)
RS-422A/485 Option Board
NX1W-CIF11/CIF12
E5CC
Controller
No. 0
PV
SV
<< PF
E5CC
Operation setting DIP switches on the back of the
NX1W-CIF11/CIF12 Option Board
For an NX1W-CIF12
SW1
SW1
NX1W-CIF11/CIF12
E5CC
Controller
No. 0
B (+)
13
14
A (-)
C Digital Temperature Controllers Communications Manual (Cat. No. H175) for details
E5CC E5CC
Controller Controller
No. 1 No. 2
PV PV
SV SV
<< PF << PF
E5CC E5CC
SW1 SW2
SW2
E5CC E5CC
Controller Controller
No. 1 No. 2
B (+) B (+)
13 13
14 14
A (-) A (-)
4 Serial Communications
Terminating
resistance
120 Ω (1/2W)
4
4 - 17