Technical Appendix
6.2
PLC user interface signals
6-105
SINUMERIK 802C
6FC5 597–3AA20–0BP2 (01.02)
Technical Appendix
6.2
PLC user interface signals
The following tables of the user interface signals between PLC and NC (and vice versa) are
handled by the integrated fixed user program.
These signals can be displayed using PLC Status in the Diagnosis/Start–Up/PLC Status
menu.
6.2.1
Address ranges
Operand Identifier
Description
Range
V
Data
V0.0 to V79999999.7 (see below)
T
Timers
T0 to T15
C
Counters
C0 to C31
I
Image of digital inputs
I0.0 to I7.7
Q
Image of digital outputs
Q0.0 to Q7.7
M
Flags
M0.0 to M127.7
SM
Special flags
SM0.0 to SM 0.6 (see below)
AC
ACCU
AC0 ... AC3
Generating the V address range
Type
Identifier
(DB No.)
Range No.
(Channel /
Axis No.)
Subrange
Offset
Addressing
10
(10-79)
00
(00-99)
0
(0-9)
000
(000-999)
symbolic
(8-digit)
Definition of special flag bits (SM) (read–only)
SM Bits
Description
SM 0.0
Flags with a defined ONE signal
SM 0.1
Initial position: first PLC cycle ‘1’, following cycles ‘0’
SM 0.2
Buffered data lost - only valid in the first PLC cycle (‘0’ - data o.k., ‘1’ - data lost)
SM 0.3
Power On: first PLC cycle ‘1’, following cycles ‘0’
SM 0.4
60 s clock (alternating ‘0’ for 30 s, then ‘1’ for 30 s)
SM 0.5
1 s clock (alternating ‘0’ for 0.5 s, then ‘1’ for 0,5 s)
SM 0.6
PLC cycle clock (alternating one cycle ‘0’, then one cycle ‘1’)
Summary of Contents for SINUMERIK 802C
Page 1: ...Start Up 01 2002 Edition SINUMERIK 802C ...
Page 2: ......
Page 8: ...Table of Contents viii SINUMERIK 802C 6FC5 597 3AA20 0BP2 01 02 notice ...
Page 40: ...Installing the Drives 3 40 SINUMERIK 802C 6FC5 597 3AA20 0BP2 01 02 ...
Page 138: ...Index Index 138 SINUMERIK 802C 6FC5 597 3AA20 0BP2 01 02 notice ...
Page 140: ......
