Omron CK3M Series, Hardware User Manual

Page: 233 / 288


WDTFault
Register name Sys.WDTFault
Description Software Watchdog Timer Error Status
Range 0 to 3
Details Sys.WDTFault shows the software watchdog timer operation status with 2-bit data.
Bit0: Background software watchdog timer error
0: No background watchdog timer error has occurred.
1: Background watchdog timer error has occurred.
Bit1: Real-time interruption software watchdog timer error
0: No real-time interruption watchdog timer error has occurred.
1: Real-time interruption watchdog timer error has occurred.
Refer to the Power PMAC User's Manual (Cat. No. O014) for details of the software
watchdog timer.
Detection timing During operation
Recovery Cycle the power supply, issue reset command ($$$) or re-initialization command ($$
$***)
Effects User program: Stops
Hardware: Enters reset state
Cause and cor-
rection Cause (Assumed cause) Correction Prevention
Background software
watchdog timer error occur-
red.
•
Real-time interruption
process took too long,
and the background
process could not be im-
plemented at the interval
set in the Sys.WDTReset
register.
•
Review the user pro-
gram.
•
Review the Sys.WDTRe-
set register value.
None
Real-time interruption soft-
ware watchdog timer error
generated.
•
Real-time interruption
process could not be im-
plemented at the interval
set in the
Sys.BgWDTReset regis-
ter.
•
Review the user pro-
gram.
•
Review the
Sys.BgWDTReset regis-
ter value.
None
Precautions/
Remarks None
6 Troubleshooting
6-19
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
6-4
Sys.Status Register
6
6-4-2
Details of Flags