Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 125)

Rockwell Automation Publication 1715-UM001C-EN-P - March 2014 125
Digital I/O Operation Chapter 3
1715-OB8DE Digital Output Module
The digital output module interface consists of a combination of digital output
modules and digital output termination assemblies. Each module provides 8
isolated output channels and plugs into a single position of the I/O base unit and
a corresponding termination assembly. Digital outputs can be configured as
simplex or duplex.
The 1715-OB8DE digital output module has a flexible, fail-safe design, with
eight field output channels. The module output can be up to 1A continuous for
each channel.
The 1715-OB8DE digital output module features are as follows:
• Eight isolated output channels per module
• Fail-safe design and operation
• Suitable for simplex and duplex connections for fault tolerant applications
• Duplex series output switches with overload protection for each channel
• Voltage and current monitoring on each channel with reverse current
protection
• Short circuit and open circuit line fault detection
• Dual redundant field power feed capabilities without the need for external
diodes
• When fitted in duplex configuration, modules can be replaced online
without system interruption
ATTENTION: Maintenance must be performed only by qualifiend personnel,
otherwise, personal injury or death, or damage to the system can result.