Rockwell Automation 1755-OF8 GuardPLC Controller Systems User Manual

Page 313

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Publication 1753-UM001C-EN-P - March 2010

313

System Signal Variables Appendix B

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

Cnt.State

Read

Error mask of both counters

0x0000

No errors detected

0x0001

Error of the counter section of the module

0x0002

Error while comparing the time base

0x0004

Addressing error while reading the time base

0x0008

Parameterization of the time base corrupted

0x0010

Addressing error while reading the counts

0x0020

Parameterization of counter corrupted

0x0040

Addressing error while reading the Gray codes

0x0080

Within the multiple error occurrence time: test sample test faulty

0x0100

Error of the module

Cnt[0x].Value

(1)

Read

Counts of counter 1 or 2 (cyclic 24-bit)
24 bits for pulse counter
4 bits for Gray code for GuardPLC 2000 controllers;
3 bits for Gray code for GuardPLC 1200 controllers

Cnt[0x].5/24V Mode

(1)

Read/Write

5V or 24V mode of counter 1 or 2
The write values must have initial values or constants.

0

5V

1

24V

Cnt[0x].Auto Advance
Sense

(1)

Read/Write

Automatic recognition of direction of counting for counter 1 or 2

0

Manual setting of direction of counting

1

Automatic recognition of direction of counting

Cnt[0x].Direction

(1)

Read/Write

Direction of counting for counter 1 or 2
(only when Automatic Counter Advance Sense = false)

0

Up

1

Down

Cnt[0x].Dummy1

Read/Write

reserved memory space for future use

Cnt[0x].Dummy2

Read/Write

reserved memory space for future use

I/O Data

Read/Write

Description

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