SIGMATEK ETT 731, Техническое руководство

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ETT 731 BUILD-IN TERMINAL TOUCH
Page 24 05.12.2019
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
An error has occurred while stopping the
application over the online interface.
The error occurs only during the
development
of the operating
system.
07
PROM DEFECT
An error has occurred while program-
ming 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.
Info
09
WD DEFEKT
The hardware monitoring circuit (watch-
dog logic) is defective.
After power-up, the CPU checks the
watchdog logic function. If an error
occurs during this test, the CPU deliber-
ately enters an infinite loop from which
no further instructions are accepted.
Solution:
-
Exchange CPU.
10
STOP
The program was stopped by the pro-
gramming system.
11
PROG BUSY
Reserved
12
PROGRAM LENGTH
Reserved
13
PROG END
A memory module was successfully
programmed. Info
14
PROG MEMO
The CPU is currently programming the
memory module. Info