Connection Monitoring; Table 48: Send Cycle Time As A Function Of Rt Class, Transmit Clocking And Scaling - WAGO -I/O-SYSTEM 750 Manual
Profinet io advanced fieldbus coupler, 2-port switch, 100 mbit/s, digital, analog and complex signals
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WAGO-I/O-SYSTEM 750
750-375 PROFINET IO advanced Fieldbus Coupler
Table 48: Send cycle time as a function of RT class, transmit clocking and scaling factor
RT class
1 (RT)
3 (IRT)
8.8.2
Connection Monitoring
Monitoring interval (provider data holds)
The monitoring interval is determined by the "DataHoldFactor".
If the provider data of the IO controller fail, the fieldbus coupler signals
termination of the application relationship with an RTA alarm after a specific time
(T) with the reason "DataHoldTimer expired".
The time (T) is determined as follows:
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Manual
Version 1.1.0
Transmit
clocking [ms]
1
1
2
4
T = („DataHoldFactor" + 1) * send cycle time
Scaling factor
0
1 (2
)
1
2 (2
)
2
4 (2
)
3
8 (2
)
4
16 (2
)
5
32 (2
)
6
64 (2
)
7
128 (2
)
8
256 (2
)
9
512 (2
)
0
1 (2
)
1
2 (2
)
2
4 (2
)
3
8 (2
)
4
16 (2
)
0
1 (2
)
1
2 (2
)
2
4 (2
)
3
8 (2
)
4
16 (2
)
0
1 (2
)
1
2 (2
)
2
4 (2
)
3
8 (2
)
4
16 (2
)
Commissioning
105
Send cycle time [ms]
1
2
4
8
16
32
64
128
256
512
1
2
4
8
16
2
4
8
16
32
4
8
16
32
64
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