Siemens SIMATIC S5-115U User Manual page 137

S5-115U Manual
ISTACK display on the PG 605U
The following table shows which bits in the ISTACK are relevant for error diagnostics. The bits in
boxes with heavy borders indicate the cause of a malfunction and the step address counter.
Bit
7 6
Byte
1
CA- CE-
2
DA DA
STO STO
3
ZUS ANZ
UA
4
FEHL
ASP ASP
5
NEP NRA
KEIN SYN
6
AS FEH
7
8
9 STOPS
10 NAU QVZ
11
12 ANZ1 ANZ0
13 6th nesting level
14
15 4th nesting level
16 5th nesting level
EWA 4NEB 811 6130-02b
Table 5-2. ISTACK Display on PG 605U
5 4 3
BST SCH ADR
SCH TAE BAU
REM
AN
NEU BAT
STA PUF
KOPF ASP
NI NEEP
NINEU
IRRELEVANT
IRRELEVANT
SUF TRAF NNN
KOLIF ZYK SYSFE
OVFL OR
IRRELEVANT
2 1 0
SPA
BBR
BARB
BARB
END
AF
UR
LAD
STS STUEB FEST
PEU BAU ASPFA
STA
VKE ERAB
TUS
OR VKE FKT
OR VKE FKT
OR VKE FKT
Error Diagnostics
Abso- System
lute data word
addr. (RS)
EA0A
SD 5
EA0B
EA0C
SD 6
EA0D
EA0E
SD 7
EA0F
EBAC
SD 214
(UAW)
EBAD
EBAA
SD 213
EBAB
EBA8
SD 212
EBA9
EBA6
SD 211
EBA7
5-3