MULTI-TOUCH OPERATING PANEL
ETT 764
Number
Message
Definition
Cause/Solution
09
WD DEFECT
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:
n
Exchange CPU
10
STOP
The program was stopped
by the programming
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
15
STOP BRKPT
The CPU was stopped by
a breakpoint in the
program.
Info
16
CPU STOP
The CPU was stopped by
the programming
software.
Info
17
INT ERROR
The CPU has triggered a
false interrupt and
stopped the user program
or has encountered an
unknown instruction while
running the program.
Causes:
n
A nonexistent operating system
was used.
n
Stack error (uneven number of
PUSH and POP instructions).
n
The user program was
interrupted by a software error.
Solution:
n
Correct programming error.
24.03.2021
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