2111 interbus fieldbus module – Lenze EMF2111IB User Manual
Page 7
Technical data
Communication times
5
2111 INTERBUS fieldbus module
5.3
5.3.4
L
5.3-3
EDSIBS-1.0-06/2003
5.3.4.2
Processing time in the controller
The processing time of the controller is added to the INTERBUS cycle time.
The processing time of the controller depends on the series and version:
For the 820X series several processing steps are required. These steps are
processed cyclically.
A processing cycle consists of:
l
Writing of control word or setpoint, if the value has changed
l
Alternating reading of status word and actual value
l
Processing of PCP parameter access, if there is a service.
)
)
)
)
Note!
A change of the setpoint signal results in writing the control word.
If the time tolerances caused by cyclic reading of the status word/actual value are
too large, the alternating reading of the status word and the actual value can be
suppressed. This is controlled by bit 15 (PE inhibit) of the DRIVECOM control
word:
(
¶ 5.6-35)
.
A suppression of the processing of parameter access is not necessary, since this
is controlled by the user.
In the following table you will find a list of the processing times:
Processing step
Max. processing time
[ms]
Processing tolerance
[ms]
Additional parameter
[ms]
Parameter
70
-8
-
Setpoint
35
-8
180
Control word
35
-8
180
Actual value
35
-8
180
Status word
35
-8
180
Setpoint + control word
70
-16
180
Setpoint + control word + actual
value + status word
140
-32
180
The parameter data (transmission via PCP channel) and process data are
independent of each other.
l
Parameter data (PCP): approx. 30 ms + 20 ms tolerance
l
Process data (PD): approx. 3 ms + 2 ms tolerance
The parameter data (transmission via PCP channel) and process data are
independent of each other.
l
Parameter data (PCP): approx. 30 ms + 20 ms tolerance
l
Process data (PD): approx. 2 ms + 1 ms tolerance
l
Parameter data (PCP): 30 ms + 20 ms tolerance
l
Process data (PD): depending on process image
Processing time 820X
Processing time 821X /
8200 vector / 822X
Processing time 9300 servo
inverter
Processing time Drive PLC / 9300
Servo PLC
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