Rockwell Automation 1747-DCM Direct Communication Module - Manual (Page 6)

6 Direct Communication Module
Publication 1747-IN005B-EN-P - March 2003
Extended Node Capability
The 1747-DCM features extended node capability. Extended node capability allows
you to have up to 32 adapters on the RIO link using an 82
Ω
termination resistor at
both ends of the RIO link for all baud rates.
Hardware Features
IMPORTANT
Extended node capability can only be used if the scanner and all
adapters on the RIO link have extended node capability.
SLC 500
CA
T SERIAL
NO.
DCM
DIRECT COMMUNICA
TION
MADE IN USA
COMM
FAULT
CONFIGURATION
RACK SIZE
1/4 1/2 3/4 1
RACK ADDR
FIRST I/O GROUP
0 2 4 6
DATA RATE (K B/S)
57.6 115.2 230.4
LINE 1 _______
SHIELD ______
LINE 2 _______
MODULE
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
I/O
GROUP
(LSB)
(MSB)
X
X
RACK
SIZE
LAST RACK
CLR ON FLT
DATA
RATE
SW 2
SW 1
SW1
SW2
1
2
34567
8
1
2
34567
8
RACK
ADDR
1747±DCM
SW2
SW1
O N
1
2
3
4
567
8
O N
1
234
5
6
7
8
I/O
GROUP
(LSB)
RACK
ADDRESS
(MSB)
RACK
SIZE
DATA
RATE
X
X
LAST RACK
CLR ON FLT
FAULT LED (Red)
COMM LED (Green)
Door Label
Front Label
RIO Link Connector
Cable Tie Slots
Self-Locking Tab
Side Label
DIP Switches
Self-Locking Tab