Rockwell Automation 2755-SNx Adaptascan Bar Code Readers - Manual (Page 111)

7–5 Communicating with an SLC on a DH-485 Network
Publication 2755-6.8
Connecting Readers to SLC 5/04 Controller – 2 AIC Modules
The SLC 5/04 controller requires two 1747-PIC converters and a
power supply to connect to the second 1747-AIC module.
The end devices on a DH-485 network must be terminated. The
wiring base of the AdaptaScan Reader provides a termination switch.
SLC 5/04 Processor
Term
A
B
Com
Shield
Chassis Gnd
1747-PIC
1747-AIC Module
Term
A
B
Com
Shield
Chassis Gnd
1747-AIC Module
1747-P4
24V dc Power Supply
1747-PIC
AdaptaScan Wiring Base
RS-422/RS-485 Terminal
AdaptaScan Wiring Base
RS-422/RS-485 Terminal
Computer
The 1747-P4 Power Supply provides
power to both 1747-AIC modules (1 AMP,
24V dc). Otherwise use 2 power supplies.
DH-485 RS-232
RS-232
DH-485
Channel 0
Power
Supply