SIGMATEK C-DIAS - Page 29

C-DIAS PROCESSOR MODULE CCP 611
27.03.2020 Page 27
05
WATCHDOG
The program was interrupted via the
watchdog logic.
Possible Causes:
- User program interrupts blocked
over a longer period of time
(STI command forgotten)
- Programming error in a hardware
interrupt.
- INB, OUTB, INW, OUTW instruc-
tions used incorrectly.
- The processor is defect.
Solution:
- Correct programming error.
- Exchange CPU.
06
GENERAL ERROR
General error
07
PROM DEFECT
An error has occurred while pro-
gramming the memory module.
Cause:
- The program memory module is
defect.
- The user program is too large.
- The program memory module is
missing.
Solution:
- Exchange the program memory
module
08
RESET
The CPU has received the reset
signal and is waiting for further
instructions.
The user program is not processed.
09
WD DEFEKT
The hardware monitoring circuit
(watchdog logic) is defective.
After power-up, the CPU checks the
watchdog logic function. If an error
occurs during this test, the CPU
deliberately enters an infinite loop
from which no further instructions
are accepted.
Solution: Exchange CPU.
10
STOP
11
PROG BUSYS
12
PROGRAM LENGTH
13
PROG END
A memory module was successfully
programmed.
14
PROG MEMO
The CPU is currently programming
the memory module.