Messages for two-hand operation
The following table shows the messages with the associated byte arrangement in the element
data block of the "two-hand operation" function element.
Byte posi‐
tion
Message Meaning Element status Cyclic data
6
0
... 6
1
Reserved=0
6
2
Discrepancy condi‐
tion violated
is set if:
• After the discrepancy time
has elapsed, the signal states
at the inputs monitored are
dierent within one or be‐
tween to two pushbuttons.
• The signal states of the inputs
monitored had not all previ‐
ously been reset simultane‐
ously to the value "0" when
they are set to "1"
Logic error SF
6
3
Bushbutton stuck The pushbutton is stuck. Logic error SF
6
4
Do not release both
pushbuttons
The two pushbuttons were not
released simultaneously.
Logic error SF
6
5
... 6
7
Reserved=0
7
0
Cross-circuit at input 1 A cross-circuit was detected at in‐
put 1.
Wiring error SF
7
1
... 7
3
Reserved=0
7
4
Cross-circuit at input 2 A cross-circuit was detected at in‐
put 2.
Wiring error SF
7
5
... 8
0
Reserved=0
8
1
Start condition not ful‐
lled
is set if:
• If both pushbuttons were not
pressed "synchronously," that
is, they were pressed with a
time oset greater than 0.5 s
• A discrepancy condition viola‐
tion is present
• The value "1" is not present si‐
multaneously at IN1 ... 2 / 4
• A cross-circuit is present
‑ ‑
8
2
... 8
7
Reserved=0
9
0
Cross-circuit at input 3 A cross-circuit was detected at in‐
put 3.
Wiring error SF
9
1
... 9
3
Reserved=0
9
4
Cross-circuit at input 4 A cross-circuit was detected at in‐
put 4.
Wiring error SF
9
5
... 9
7
Reserved=0
Diagnostics / service
7.6 Diagnosis using AS-Interface (CTT2 protocol)
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 321