Siemens SINUMERIK 802S Technical Manual page 125

Signals from spindle
3903
Data block
Byte Bit 7
39032000
(spindle)
Actual
direc-
tion
39032001 of
rotation
(spindle) CW
Active spindle mode
39032002 Control Recipro-
(spindle) mode
39032003
(spindle)
Signals from Stepper motor
3900...3903
Data block
Byte Bit 7
390x5000
(Stepper
motor)
390x5001
(Stepper
motor)
390x5002
390x5003
SINUMERIK 802S base line
Start-Up
Bit 6 Bit 5
Spindle
within set
range
Position-
cating ing
mode mode
Bit 6 Bit 5
Signals from spindle [r]
Interface CNC -----> PLC
Bit 4 Bit 3
Change
gear
increased
Tapping
without
compen-
sating
chuck
Signals from stepper motor [r]
Interface CNC -----> PLC
Bit 4 Bit 3
Technical Appendix
Bit 2 Bit 1
Set gear stage
C B
Set Set
speed speed
limited exceeded
Bit 2 Bit 1
Rotation
monitoring
error
Bit 0
A
Speed
limit
Bit 0
6-31