Siemens SINUMERIK 840C - Page 131

5 PLC Interface 01.99
5.2 Basic signals
7 6 5 4 3 2 1 0
Bit No.
Byte No.
FY 12
FY 13
FY 14
FY 15
FY 16
FY 17
FY 18
FY 19
Signals for alarm-controlled processing
N e g a t i v e e d g e o f t h e p r o c e s s a l a r m b y t e
B y t e N o . n
B y t e N o. ( n + 1 )
B y t e N o. ( n + 2 )
B y t e N o. ( n + 3 )
P o s i t i v e e d g e o f t h e p r o c e s s a l a r m b y t e
B y t e N o . n
B y t e N o. ( n + 1 )
B y t e N o. ( n + 2 )
B y t e N o. ( n + 3 )
7 6 5 4 3 2 1 0
Bit No.
Byte No.
FY 20
FY 21
2nd inter-
face module
CL
1st inter-
face module
CL
FY 22
Signal to
CSB: data
saved (from
SW 6.3)
Signal from
CSB: power
failure (from
SW 6.3)
Drives
ready
NC CPU
ready
MMC CPU
ready
FY 23
NC Ready signals
7 6 5 4 3 2 1 0
Bit No.
Byte No.
FY 24
Meas.
probe
actuated 1
Meas.
probe
actuated 2
NC alarm
with mach.
stop
CPU
failure
Fault over-
temperature
fan
Temper-
ature
warning
Battery
warning
NC alarm
present
Single signals
5–14 © Siemens AG 1992 All Rights Reserved 6FC5197- AA60
SINUMERIK 840C (IA)