Siemens SINUMERIK 880 SW 6 Planning Manual page 435

05.91
20 Error List with System Stop
The parameters for the PLC operating system (PLC machine data) and the direct parameters
of the function blocks are checked for their admissibility in the function blocks for the SINU-
MERIK 880 - in particular when switching on. In the event of serious errors being identified that
would lead to improper control reactions, the PLC assumes the STOP state with STS (system
stop).
In the stop state the INTERRUPT STACK can be read out using the PG 685/750. The user
can identify the cause of the error from the second interrupt stack display.
If STS is stated in the interrupt stack display as the cause of the fault and the block number is
the same as ACCU 1, the STOP has been caused by a parameterization error.
1)
Interrupt stack
P L C I N F O R M A T I O N I S T A C K
DEPTH: 01
BEF-REG: 3D0B SAZ (new):32AD1
BST-STP: 00009 OB-NR.r:
AKT REL-SAZ: 00001
OB-NR.: 20 BEF-Z:
ACCU1: 0000 0011 ACCU2: 0000 0004 ERRCODE: 00FF 0000 1400 0000
RESULT CON. CODES:
CAUSES OF FAULT:
Example of interrupt stack display
In the example, error 04 is set in FB 11. As described in the following table, this error indicates
that the length of the data block being set up does not correspond to the length of the data
block that already exists in the PLC.
The following table lists the currently available error messages. Note that the list is
comprehensive only for the function macros of the PLC operating system (FB overview). If
accumulator identifiers are found in the interrupt stack that are not listed in the table, the
relevant error descriptions can be found in the data sheets of the block.
Also note that the BLOCK STACK is often required for a comprehensive error analysis.
If advice is needed in the event of errors being found, e.g. in consultation with a branch office,
all the data of the INTERRUPT STACK and, where possible of the BLOCK STACK, will be
required.
–––––––
1) If using a SIMATIC S5-155U, refer to SINUMERIK 880 with S5-155U, Difference Description to PLC 135 WB in
this context.
©
Siemens AG 1991 All Rights Reserved
SINUMERIK 880 (PJ)
DB-ADR:
20 DB-NR.:
DBL-REG:
CC1 CC0 OVFL
STATUS VKE
KB KDB TRAF
NAU QVZ ADF
6ZB5 410-0HE02
20 Error List with System Stop
00000 BR-ADR: 32ABD
FB-NR.:
0 BEF-Z:
OVFLS ODER ERAB
X
SUF STUEB STUEU
ZYK WEFE PEU
254
20–1