Rockwell Automation 1747-L40 SLC 500 Fixed Hardware Style - Manual (Page 122)

B
Appendix
B–1
The 1771-Remote I/O Network
This appendix provides a brief introduction about the 1771–Remote I/O
Network. For information on the 1771–Remote I/O Network, see the Direct
Communication Module User Manual, Catalog Number 1747–NM007 and
the Remote I/O Scanner User Manual, Catalog Number 1747–NM005.
The Allen–Bradley 1771–Remote I/O Network enables chassis of I/O,
operator interface terminals, push–button panels, blocks of I/O, message
displays, drives and much more to be great distances from the host PLC
processor. The SLC 500 controller (fixed, 5/01, 5/02, or 5/03) can interface
to this network through the 1747–DCM module for distributed processing.
The DCM allows the SLC 500 to look like another device on the network.
Below is an example of the 1771–Remote I/O Network.
PanelView
Operator Terminal
PLC-5/15 or
PLC-5/25
Fixed
1771-Remote I/O Network
SLC 5/01 SLC 5/02
1747-DCM 1747-DCM 1747-DCM
With the SLC 5/02 or 5/03 processor, a 1747–SN Remote I/O Scanner can be
used as the host of the remote I/O network. With a SLC 5/02 or 5/03 and
SN, a PLC is not required on the network.
PanelView
Operator Terminal
SLC 5/02
1771-Remote I/O Network
Block I/O
SLC 5/02
1747-SN
1747-DCM
1771-Remote I/O Network