Rockwell Automation 1756-L7x GuardLogix 5570 Controllers - Manual (Page 87)

Rockwell Automation Publication 1756-UM022A-EN-P - November 2012 87
Develop Safety Applications Chapter 6
To properly configure produced and consumed safety tags to share data between
peer safety controllers, you must properly configure the peer safety controllers,
produce a safety tag, and consume a safety tag, as described below.
Configure the Peer Safety Controllers’ Safety Network Numbers
The peer safety controller is subject to the same configuration requirements as
the local safety controller. The peer safety controller must also have a safety
network number (SNN). The SNN of the peer safety controller depends upon
its placement in the system.
Follow these steps to copy and paste the SNN.
1. Add the producer controller to the consumer controller’s I/O tree.
2. In the producer controller’s project, right-click the producer controller and
choose Controller Properties.
Table 29 - SNN and Controller Placement
Peer Safety Controller Location SNN
Placed in the local chassis GuardLogix controllers located in a common chassis
should have the same SNN.
Placed in another chassis The controller must have a unique SNN.
Consumer Controller
Producer Controller