Rockwell Automation 1755-OF8 GuardPLC Controller Systems User Manual
Page 310
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310
Publication 1753-UM001C-EN-P - March 2010
Appendix B System Signal Variables
AI[0x].State
(1)
Read
Error mask for analog input channels
0x00
No error detected
0x01
Error in analog input channel
0x02
Invalid measurement values
0x04
A/D converters faulty
0x08
Measurement values are not within the safety accuracy
0x10
Measurement value overflow
0x20
Channel not in use
0x40
Addressing error of the two A/D converters
AI[0x].Used
Write
Configuration of analog input channel
0
not used
1
used
AI[0x].Value
(1)
Read
Analog value of input channel (WORD)
-10V…10V = -1000…1000
Board.SRS
Read
System.Rack.Slot
Board.Type
Read
Module type
0xFD02
analog input module for GuardPLC 2000 controller
0xFFFF
missing module in GuardPLC 2000 chassis
Board.State
Read
Error mask for the module
0x000
I/O processing may be running with errors
0x001
No I/O processing (CPU not in RUN)
0x002
No I/O processing during start-up tests
0x004
Manufacturing interface running
0x010
No I/O processing due to faulty parameterization
0x020
No I/O processing due to exceeded fault rate
0x040
No I/O processing because configured module is not plugged in
(1) 0x = input channel 01…08.
I/O Data
Read/Write
Description