Installation guide

Communications Overview
890 USE 101 00 October 2006 13
Processing Nodes on the RIO Network
Overview The RIO network supports communications between a PLC and one or more drops
of I/O modules dispersed throughout your local area—e.g., your manufacturing or
processing facility. All messages on the RIO network are initiated by a master node
called the RIO head or processor. All other nodes on the network communicate with
the RIO head via RIO adapters located at the drops. The network is proprietary, and
Schneider Electric processing nodes must be used throughout the RIO network.
RIO Processors RIO is fundamentally a single-master network, and the RIO processor is the master
node. The RIO processor is located at the PLC at the head-end of the RIO network.
Depending on the type of PLC you are using, the RIO processor can be
implemented in hardware as an option module that mounts beside the PLC or as a
board built into the PLC.
PLC Type RIO Processor Dynamic Range Max. RIO Drops
984A S908 chassis module 35 dB 32
984B S908 chassis module 35 dB 32
984X On the S929 Processor 35 dB 6
AT-984 On host-based PLC card 32 dB 6
MC-984 On host-based PLC card 32 dB 6
Q-984 On host-based PLC card 32 dB 6
984-485E/K S908 slot mount module 35 dB 6
984-685E S908 slot mount module with AS-E908-016
Executive
35 dB 15
S908 slot mount module with AS-E908-131
Executive
35 dB 31
984-785E/K/D S908 slot mount module with AS-E908-016
Executive
35 dB 15
S908 slot mount module with AS-E908-131
Executive
35 dB 31
Quantum 140CRP931 or 140CRP932 Quantum
module
35 dB 31
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com