Siemens SIMATIC S5 Manual page 183

Error Diagnostics
ISTACK display on the PG 635/675/685/695 and 750 with COM 115F
The following tables show the ISTACK as it is displayed on CRT-based programmers. Set bits are
marked by "X" (here, for example, FITEKO-OK, STOANZ., etc.).
Some bit identifiers are different when using LAD, CSF and STL .
CONTROL BITS
FISIN PR FIALA TE
_ _
FIF BETR FIBS AKT
_ _
STOZUS STOANZ
X
FINT GEW FIQV
_
ASPNEP ASPNRA
X
KEINAS SYNFEH
INTERRUPT STACK
DEPTH: 1
OP REG: 4080
BLK STP: EAFF
ACCUM1: FFF1
BRACKETS:
RESULT
DISPLAY:
CAUSE OF
FAULT:
5-2
BSTSCH SCHTAE ADRBAU
FITL AG FITEKO OK ALARMREQ
_ _
X
NEUSTA FIURLOE BATPUF
FIR BUS FIEMPF FISEND
_
KOPFNI FIDE TE ASPNEEP
_
NINEU NB
Figure 5.1. Control Bit Display (SD 5, 6, 7)
SAZ: 0000
NO.:
REL SAZ:
ACCUM2: 00FF
KE1 000 KE2 000 KE3
ANZ1 ANZ0 OVFL
(CC1) (CC0)
STOPS SUF
X
NAU QVZ
Figure 5-2. Interrupt Stack Display
TIMR AKT FIFEDB
_
FIEA PER
_
FIWINT BARB
ABFS AKT FIWEBI
_
X
FIOBT RQ FIDE
_
NB NB
DB ADR:
DB NO.:
000 KE4 000 KE5
CARRY ODER STATUS
TRAF NNN STS
ZYK SYSFE PEU
S5-115F Manual
S FISTPS
_
SD 5
(EA0A)
NB FIALA SP
_
BARBEND
SD 6
(EA0C)
2 FIKSTOP
_
M T FIOBT FE
_ _ _
SD 7
(EA0E)
NB URLAD
0000
000 KE6 000
VKE ERAB
(RLO)
STUEB FIF
_
FEHLER
UAW
BAU ASPFA
EWA 4NEB 811 6149-02