Rockwell Automation 440R MSR300 Modular Safety Control System - Manual (Page 44)

MSR300 Safety System Manual
Rockwell Automation
MSR300 Manual.doc Pg 44 of 85
5.2 Special Logic Functions
An MSR300 System can be configured for applying OR logic to a combination of inputs of
one or more Input Modules. This allows e.g. limited access to dangerous areas by use of
3-position enabling switches or enabling pendants (see application examples below).
Switch setting for logic function: 0
Group 3 = Input 1 OR Input 2 OR Group 1
When an MSR300 System includes more than one Input Module set for OR logic, the
logic function is:
Group 3 = Input 1
Module1
OR Input 2
Module1
OR Input 1
ModuleX
OR Group 1
["X" is the input module number of the second or other Input Module]
The logic function cannot be implemented in an MSR300 System that is configured for
robot safety control, for additional safe area monitoring or for muting.
Implementation of the logic function in an MSR300 System is subject to the following
system configuration rules:
• An MSR300 System cannot have a Muting Module and a Logic Module (Input
Module set up for logic function): i.e., the system can have either one or the other
type of module, not both.
• An MSR300 System cannot have a Robot Module (Input Module set up for robot
function) and a Logic Module (Input Module set up for logic function): i.e., the
system can have either one or the other type of module, not both.
• An MSR300 System cannot have an Additional Safe Area Module (Input Module
set up for additional safe are function) and a Logic Module (Input Module set up for
logic function): i.e., the system can have either one or the other type of module, not
both.
• A Group 3 Output Module must be included in an MSR300 System in which logic
control is implemented.
• Additionally one of the Input Modules must have its output group assignment (by
rotary switch) set to Group 1. This is to be done only to implement the logic
function: physical connection of a group 1 output module is not necessary for this
purpose, but may be used if the safety system design requires this.