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.
Output OFF
Input
Inputs to Network OFFNetworks
Safety
Status
44076
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