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(4) PLC RAS
Parameters required for performing the RAS functions are set.
Item
WDT Setting
WDT
(Watchdog
timer) setting
Initial execution monitoring
time
Computation error
Expanded command error
Fuse blown
Module verify error
Operating mode
Intelligent module program
when there is an
execution error
error
File access error
Memory card operation
*3
error
External power supply OFF
Carry out battery check
Carry out fuse blown check
Verify module
Error check
Check device range at
indexing.
Diagnose redundant power
*2
supply system.
Constant scanning
*1: These items are provided for future expansion.
*2: When selecting this item for the Q02UCPU, Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q13UDHCPU, or Q26UDHCPU, check the
versions of the CPU module and GX Developer. (
*3: Not available for the Q00UJCPU, Q00UCPU, and Q01UCPU.
Figure 8.4 PLC RAS
Table8.4 PLC RAS setting list
Parameter
Description
No.
Set a watchdog timer value for
the CPU module.
3000
H
Set a watchdog timer value in
the case of using an initial
execution type program.
*1
Set the operation mode of the
3002
CPU module when an error is
H
detected.
*1
Enable or disable detection of
3001
H
the specified error.
3003
Set a constant scan time value.
H
Appendix 2)
CHAPTER8 PARAMETERS
Setting range
Default
10ms to 2000ms
(in increments of
200ms
10ms)
10ms to 2000ms
(in increments of
Blank
10ms)
Stop/Continue
Stop
Selected/deselected
Deselected
0.5ms to 2000ms
(in increments of
Blank
0.5ms)
1
2
3
4
5
6
7
8
Reference
Section 6.16
Section 2.3.1
Section 6.17
Section 6.17
Section 6.2
8 - 6
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