Allen-Bradley Data Highway Plus and Remote I/O Communication Module 1756-DHRIO/E, Series E.
The Data Highway Plus network supports messaging between devices. The remote I/O link connects to remote I/O chassis and other intelligent devices.
The 1756-DHRIO module supports messaging between devices on DH+™ networks. The remote I/O functionality enables the module to act as a scanner for transferring digital and block transfer data to and from remote I/O devices.
The 1756-RIO module can act as a scanner or adapter on a remote I/O network. The 1756-RIO transfers digital, block transfer, analog, and specialty data without message instructions.
Description:Data Highway Plus/Remote I/O two-channel communication module
Communication Rate: 57.6 Kbps, 115.2 Kbps, 230.4 Kbps
DH+ Connections: 32 DH+ messages per DH+ module
Remote I/O scanner only32 logical rack connections per remote
I/O channel 16 block transfer connections per remote I/O channel
Maximum Recommended Logix Connections:32
Module location:Chassis-based, any slot
Ports: 2, individually selectable for DH+ or remote I/O