9300 Servo PLC
System blocks
2.9
DFOUT_IO_DigitalFrequency
2-32
L
ServoPLC EN 2.0
2.9
DFOUT_IO_DigitalFrequency
2.9.1
Inputs_DFOUT/Outputs_DFOUT
Digital frequency output (module number 22)
The SB converts an internal speed signal into a frequency signal and outputs it at X10.
•
The transmission is very precise (without offset and gain errors).
DFOUT_IO_DigitalFrequency
X10
C0540
0
1
2
4
5
0
1
2
4
5
CTRL
C0545
C0030
C0540
C0549
C0547
n
ma x
C0540
X8
X9
DFOUT_nOut_v
DFOUT_nIn_v
X7
Fig. 2-18
Digital frequency output (DF_OUT)
VariableName
DataType
SignalType
Address
DIS
DIS format
Note
DFOUT_nOut_v
Integer
Velocity
%QW22.0
C0547
C0549
dec [%]
dec [rpm]
DFOUT_nIn_v
Integer
Velocity
%IW22.0
-
-
Tip!
The process image is newly created for every task the SB is used in.
•
If
DFOUT_nIn_v
and
DFOUT_nOut_v
are used in several tasks, every task gets its own SB
process image.
•
This process is different from the previous process image principle!
•
The signals of the digital frequency output X10 are TTL compatible.
•
The output signal corresponds to the simulation of an incremental encoder:
– Track A, track B and the zero track (if necessary) as well as the corresponding inverted
tracks are output with tracks shifted by 90°.
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