Siemens SIMATIC S5-115U, Руководство пользователя

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S5-115U Manual Error Diagnostics
5.1.3 LED Error Signalling
Certain errors are indicated by LEDs on the CPU depending on its design. Table 5-7 explains these
error signals.
Table 5-7. Meaning of the Error LEDs on the CPUs
Meaning LED
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
QVZ
lights up
ZYK
lights up
BASP
lights up
Red
STOP LED
is flashing
Timeout (CPU went into STOP mode)
Scan time exceeded (CPU went into STOP mode)
Digital outputs are disabled (CPU is in RESTART or STOP mode)
Memory error (block structure damaged)
After CPU COLD RESTART and after POWER UP, a memory error message may result if the user
program contains the TNB, TIR or TDI operations. It is possible to inadvertently overwrite the
following with these operations:
•
Block headers
• Memory areas designated as "free" by the operating system.
The operating system writes the erroneous address found when generating the address list
into system data word 103 (EACE
H
). You can display the contents of the system data locations
using the DISP ADDR programmer function.
Special features of CPU 943 and CPU 944:
Error in the use of memory submodules (see Section 5.8)
Special features of CPU 944:
You can detect whether the error in the address list has occurred in memory bank 1 or memory
bank 2 by using the location counters in the two memory banks.
•
Location counter for memory bank 1: system data word 33 (EA42
H
)
• Location counter for memory bank 2: system data word 32 (EA40
H
).
Since the location counter is updated only after the address list has been generated, the
location counter of the memory bank with the erroneous address points to its initial value;
1000
H
in the case of memory bank 1,
1001
H
in the case of memory bank 2.
If system data word 33 contains the value "1000
H
", after a memory error message, the address
in system data word 103 refers to memory bank 1.
The value of the erroneous address can be displayed and interpreted using the DISPL. ADDR.
programmer function. The programmer automatically accesses memory bank 1.
No error on first plugging in CPU
Remedy: Overall Reset
or
Error in the CPU self-test routine
Remedy: Exchange CPU Red
STOP LED
is flickering
EWA 4NEB 811 6130-02b
5-9