Function block library
7-224
SHB9300CRV EN 2.0
7.6.74.4 Time window for the synchronization via terminal
Code Value Function
C1123/2 0 ... 1.000 ms
l
C1120 = 1
– C1123/2 has no effect
l
C1120 = 2
– Definition of a ”time window” for the LOW-HIGH edges of the sync signal at the slave (defined under
C1121/1).
– If the sync signal sent by the master is within this ”time window”, SYNC1-STAT switches to HIGH.
SY N C -C ycle (C 1121/1)
SY N C -W indow (C 1123/2)
SYNC-Signal
Fig. 7-183 ”Time window” for the LOW-HIGH e dges of the sync signal
Tip!
Ajitter up to ±200 ms on the LOW-HIGH edges of the sync signal is permissible. The size of the jitter
affects the parameterization of the ”time window”.
7.6.74.5 Correction value phase controller
Code Value Function
C0363 1 ... 5
l
Correction values for C0363 =
1 → 0.8 µs
2 → 1.6 µs
3 → 2.4 µs
4 → 3.2 µs
5 → 4.0 µs
l
C1120 = 1
– The value is derived automatically from internal parameters of the system bus (CAN).
l
C1120 = 2
– Optimizing the rise time of the phase controller depending on the frequency of the sync signal.
– Increase the value when the frequency of the sync signal is reduced.
– A stable signal at SYNC1-STAT is an indicator for an optimal parameterization.
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