Run times and reaction times – BECKHOFF BK7000 User Manual
Page 17
Basic information
BK 7000
16
Run times and reaction times
Transfer of the signals from the input to the controller and from the control-
ler to the outputs requires a run time. This is composed of various compo-
nents. Transfer from the controller to the scanner, transfer through the
ControlNet and transfer from the bus coupler to the outputs. This applies
analogously to the return distance.
Controller / Scanner
Please refer to the data provided by the scanner manufacturer for details of
the reaction time from the controller to the master. These times are compa-
ratively short and normally do not need to be considered.
The reaction time on the ControlNet depends on the NUT and the transfer
rate
K-Bus reaction time
The reaction time on K-Bus is determined by movement and backing up of
the data. The following table contains measured values for typical setups.
Extrapolation to larger quantities is possible.
Terminals fitted on the bus coupler
Run time on the K-bus
Digital
OUT
Digital
IN
Analog
IN/OUT
T_Zyklus
(us)
4
0
0
150
8
0
0
170
12
0
0
170
16
0
0
200
20
0
0
200
24
0
0
220
28
0
0
220
32
0
0
245
0
4
0
150
0
8
0
180
0
12
0
180
0
16
0
200
0
20
0
200
0
24
0
230
0
28
0
230
0
32
0
250
4
4
0
170
8
8
0
195
12
12
0
220
16
16
0
250
20
20
0
275
24
24
0
300
28
28
0
325
32
32
0
350
4
4
1
(KL3202)
630
4
4
2
(KL3202)
700