Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 77)

Rockwell Automation Publication 1752-UM001E-EN-P - June 2014 77
Chapter
7
Configure Your Controller for DeviceNet
Communication
Introduction The SmartGuard controller can function simultaneously as a safety master, safety
slave, or standard slave.
Setting Up the Controller as a
Safety Master As a safety master, the controller can perform safety I/O communication with up
to 32 connections, by using up to 16 bytes per connection. Connections may be
either single-cast or multi-cast.
Different types of safety distributed I/O modules consume differing amounts of
the 32 available connections. For example, an input-only module may consume 1
of the 32 connections (input connection), while a module with both inputs and
outputs may consume 2 of the 32 safety connections (1 input connection and 1
output connection).
The configuration of the module also dictates how many safety connections it
consumes. For example, the 1791DS-IB12 module has 12 safety inputs, no safety
outputs, and 4 standard or pulse test outputs. If this module is configured for
safety inputs only, it consumes 1 safety connection. However, if this module is
configured to use safety inputs and standard outputs, it will consume 2 safety
connections. Ultimately, the number and type of safety distributed I/O modules
you have connected to the SmartGuard controller will determine the maximum
number of modules the controller can control.
A master-slave relationship is established for each connection on the DeviceNet
safety network, separate from the master-slave communication on the DeviceNet
standard network. This enables the controller that is the safety master to control
the safety connections.
Topic Page
Setting Up the Controller as a Safety Master 77
Setting Up the Controller as a Safety Slave 87
Setting Up the Controller as a DeviceNet Standard Slave 95
Reading and Writing to and from the SmartGuard Controller to a PanelView Plus
Interface 100