Allen-Bradley Logix5000 Reference Manual

Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 163
Input/Output Instructions (MSG, GSV, SSV, IOT) Chapter 4
Condition Relay Ladder Action Structured Text Action
EnableIn is set. N/A EnableIn is always set.
The instruction executes.
Instruction execution
End
Rung-condition-out is
set to false.
.EN Bit = 0
Examine .EW Bit
.EW Bit = 1
.EW Bit = 0
Examine .ST Bit
.ST Bit = 1
.ST Bit = 0
Examine .DN Bit
.DN Bit = 1
.DN bit = 0
Examine .ER bit.
.ER Bit = 1
.ER Bit = 0
Block-transfer
Command
Module Path Valid
Yes
No
No
.EW, .ST, .TO, .DN, and .ER bits are cleared.
.EN bit is set.
Execute message request.
.EW bit is set.
Module
Connection
Running
No
Yes
Yes
.ER bit is set.
Examine .EN Bit
.EN Bit = 1
Examine .EW Bit
.EW Bit = 0
Examine .ST Bit
.ST Bit = 0
.EW, .ST, .TO, .DN, and .ER Bits are
cleared.
.EN bit is set.
.EN bit is set.
.EW bit = 1
.ST Bit =

Allen-Bradley Logix5000 Specifications

General

Brand	Allen-Bradley
Model	Logix5000
Category	Controller
Language	English