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Rockwell Automation Publication 1756-UM013B-EN-P - October 2019
Chapter 1
Digital Safety I/O Module Operation in a Control System
Different Configuration Owner
When a controller owns the I/O module configuration, other controllers can
listen to the input module. In this case, the module configuration signature in the
Logix Designer application project for any listening controller must match the
one in the owner-controller project.
Reset 1756 ControlLogix Digital Safety I/O Modules to
Out-of-Box State
If a 1756 ControlLogix digital safety I/O module was used previously, you must
clear the configuration ownership before you can install it on a safety network.
That is, you must return the module configuration to its out-of-box state.
When a 1756 ControlLogix digital safety I/O module is in the out-of-box state,
its configuration is not owned by a controller.
The Safety category on the Module Properties dialog box displays the module
Configuration Ownership. The Logix Designer application project must be
online to check.
If the module configuration is owned, the Safety category displays whether the
controller for the opened project owns the module configuration or another
controller owns it.
For information on how to reset the module in the Logix Designer application,
see
Reset to Out-of-Box Configuration on page 93
.
You cannot reset the module to its out-of-box configuration if any of the
following conditions exist:
• There are pending edits to the module properties.
• When a safety signature exists in the controller project.
The I/O modules use removable terminal blocks (RTBs) to connect field-side
wiring. You use the Studio 5000 Logix Designer application to configure the
modules (see
Controller and Software Compatibility on page 11
).
The I/O modules use the Producer/Consumer network communication model.
This communication is an intelligent data exchange between modules and other
system devices in which each module produces data without first being polled.
TIP
If the safety module is configured for inputs only, you can copy and paste
the configuration signature from one project to the other.
If the safety module has safety outputs, for example, the 1756-OBV8S
module, the configuration signature parameter is disabled.
Summary of Contents for 1756 Series
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