Plc Status - Siemens SINUMERIK 840C Installation Instructions Manual

09.95
3.5.4

PLC status

In the "PLC STATUS" mode, the user can read out the contents of counters and
timers and read out and write input words, output words, flag words, data words
and data double words. These words can only be written when a password has
been entered.
S
Selection
S
KM
Data areas
Input word
Output word
Flag word
Data word
Data double word
Times
Counter
Operator entries in
PLC STATUS mode
Any existing byte number may be preselected
Page DOWN:
Page UP:
Siemens AG 2001 All Rights Reserved 6FC5197–jAA50
SINUMERIK 840C (IA)
Up to software version 2:
SK "Diagnosis" –> SK "NC diagnosis" –> SK "Service display" –> SK "PLC
error recognition"
Software version 3 and higher:
SK "Diagnosis" –> SK "Service display" –> SK "PLC service"
IW QW FW
KH KF KT
DW DD
parallel
KH KF
The byte number is incremented by one
The byte number is decremented by one
DB DX
KC
Read Write
x x
x x
x x
x x
x x
x –
x –
3 PLC Installation
3.5.4 PLC status
C T
Data number
0–126
0–126
0–254
0–254
0–254
0–255
0–255
3-11