Allen-Bradley 1756-L61S ControlLogix 5561S, Справочное руководство

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36 Rockwell Automation Publication 1756-RM093J-EN-P - April 2018
Chapter 4 CIP Safety and the Safety Network Number
Safety Network Number (SNN) for Out-of-box Modules
Out-of-box CIP Safety I/O modules do not have an SNN. The SNN is set when
a configuration is sent to the module by the GuardLogix® controller that owns the
module.
Safety Network Number (SNN) for Safety Module with a Different
Configuration Owner
When a CIP Safety I/O module is owned by a different GuardLogix controller
(controller B), and then is added to another GuardLogix project (controller A
project), RSLogix 5000 software assigns the SNN based on the current project.
Because the current project (controller A project) is not the true configuration
owner, you need to copy the original SNN (controller B project) into the
configuration in controller A’s project. This is easy to do with standard copy and
paste commands. The result is that the CIP Safety I/O module produces data to
two GuardLogix controllers at the same time. You can do this for a maximum of
16 controllers.
Refer to the GuardLogix Controllers User Manual, publication 1756-UM020 , or
the 1768 Compact GuardLogix Controllers User Manual, publication
1768-UM002 , for information on changing, copying, and pasting safety network
numbers.
Safety Network Number (SNN) When Copying a Safety Project
IMPORTANT
To add a CIP Safety I/O module to a configured GuardLogix system (the SNN
is present in the GuardLogix controller), the replacement CIP Safety module
should have the correct SNN applied before it is added to the CIP Safety
network. See page 30 for additional information.
ATTENTION: If a safety project is copied for use in another project with different
hardware or in a different physical location, and the new project is within the
same routable CIP Safety system, every SNN must be changed in the second
system. SNN values must not be repeated.
Refer to the GuardLogix Controllers User Manual, publication
1756-UM020 , or the 1768 Compact GuardLogix Controllers User Manual,
publication 1768-UM002 , for information on changing the SNN.