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About Catalog Numbers
Types of Safety I/O Modules
Catalog Number
Name
1732DS-IB8
Safety input module
1732DS-IB8XOBV4
Safety I/O module with solid state outputs
1791DS-IB12
Safety input module
1791DS-IB8XOB8
Safety I/O module with solid state outputs
1791DS-IB4XOW4
Safety I/O module with relay outputs
1791DS-IB8XOB4
Safety I/O module with solid state outputs
(1)
Broken wires can be detected on the muting outputs.
• Safety outputs
– Solid state outputs
- Dual-channel mode evaluates consistency between two output
signals (channels), which allows use of the module for Safety
Category 4.
– Relay Outputs
- Dual-channel mode evaluates consistency between two output
signals (channels), which allows use of the module for Safety
Category 4.
- Up to 2 A is provided per output point.
- Safety relays can be replaced.
• I/O status data - In addition to I/O data, the module includes status
data to check I/O circuits.
• Security - The configuration information of the module can be
protected by a password.
• Removable I/O connectors - I/O connectors support mechanical
keying.
See the table for a listing of the types of safety I/O modules.
Safety
Test
Inputs
(1)
Outputs
8
8
8
8
12
4
8
4
4
4
8
8
Publication 1791DS-UM001H-EN-P - April 2009
About the Modules
13
Safety Outputs
Solid State
Relays
-
-
4 bipolar
-
pairs
-
-
8
-
-
4
4 bipolar
-
pairs
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