Analog output module variables (ab-ao) for, Guardplc 2000 controller – Rockwell Automation 1755-OF8 GuardPLC Controller Systems User Manual

Page 311

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Publication 1753-UM001C-EN-P - March 2010

311

System Signal Variables Appendix B

Analog Output Module Variables (AB-AO) for GuardPLC 2000
Controller

The GuardPLC 2000 controller supports these analog output
parameters

I/O Data

Read/Write

Description

AO.State

Read

Error mask for all analog outputs

0x0000

No errors detected

0x0001

Error of the module

0x0002

Within the safety time: co-efficient table check error

0x0004

No communication with the module due to controller error

AO[0x].Mode

Write

Mode of analog output channel

0

voltage

1

current

AO[0x].State

(1)

Read

Error mask for analog output channels

0x0000 0001

CPU detected error on AB-AO module

0x0000 0002

CPU detected faulty monotony counter

0x0000 0004

CPU detected error in safe addressing

0x0000 0008

CPU detected faulty CRC

0x0000 0010

CPU detected error in watchdog time of the AB-AO onboard
microprocessor

0x0000 0020

CPU cannot communicate with the AB-AO onboard microprocessor

0x0000 0040

CPU detected that the present operating mode (current/voltage) is
different from the initialized operating mode

0x0001 0000

AB-AO onboard microprocessor detected read back error

0x0004 0000

AB-AO onboard microprocessor detected wrong supply voltage

0x0008 0000

Within the multiple error occurrence time: AB-AO onboard
microprocessor detected faulty safety switch

0x0080 0000

AB-AO onboard microprocessor detected both safety switches
as faulty

0x0200 0000

AB-AO onboard microprocessor INITIALIZE

0x1000 0000

AB-AO onboard microprocessor detected error because of module
over temperature

0x2000 0000

AB-AO onboard microprocessor detected module over temperature

0x8000 0000

CPU detected error on redundant AB-AO onboard microprocessor
channel

AO[0x].Used

Write

Configuration of analog output channel

0

not used

1

used

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