Safety Modules User Manual Owner's manual

Rockwell Automation Publication 1734-UM013J-EN-P - July 2014 23
Chapter 2
Safety Inputs, Safety Outputs, and Safety Data
Safe States
POINT Guard Digital I/O Modules
These are the safe states of the digital POINT Guard I/O modules:
Safety outputs: OFF
Safety input data to network: OFF (single channel and
dual-channel equivalent)
Safety input data to network: OFF/ON for input channels n/n+1
(dual-channel complimentary)
Figure 3 - Safety Status
The module is designed for use in applications where the safe state is the off state.
Topic Page
Safe States 23
Safety Inputs (1734-IB8S) 24
Safety Analog Inputs (1734-IE4S) 31
Safety Outputs (1734-OB8S) 39
I/O Status Data 42
ATTENTION:
The safe state of the outputs is defined as the off state.
The safe state of the module and its data is defined as the off state.
Use the POINT Guard I/O module only in applications where the off state is the
safe state.