IFM Electronic CR0403 Programming Manual page 179

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ifm function elements
>
Parameters of the inputs
Parameter
ENABLE
CHANNEL
DESIRED_CURRENT
FREQUENCY
DITHER_FREQUENCY
DITHER_VALUE
KP
KI
>
Parameters of the outputs
Parameter
PWM_RATIO
CURRENT
RESULT
Possible results for RESULT:
Value
Description
dec | hex
0 00 FB is inactive
1 01 FB execution completed without error – data is valid
2 02 function block is active (action not yet completed)
3 03 function block is active – valid values not yet available
128 80 undervoltage on VBBx
129 81 overvoltage on VBBx
130 82 channel setting is invalid
131 83 value for DESIRED_CURRENT is invalid
134 86 dither setting is invalid
BasicController (CR0403) Runtime System V03.02
Data type
BOOL
BYTE
WORD
WORD
WORD
WORD
BYTE
BYTE
Data type
WORD
WORD
BYTE
179
ifm function elements for the device CR0403
Description
TRUE: execute this function element
FALSE: unit is not executed
> initiated processes continue in the background
> FB outputs are not updated
Number of the current-controlled output channel (0/1)
0...1 for the outputs OUT0...OUT1
desired current value of the output in [mA]
Permissible PWM frequency at the output in [Hz]
allowed = 20...250 = 0x0014...0x00FA
dither frequency in [Hz]
value range = 0...FREQUENCY / 2
FREQUENCY / DITHER_FREQUENCY must be even-numbered!
The FB increases all other values to the next matching value.
peak-to-peak value of the dither in [‰]
permissible values = 0...1 000 = 0000...03E8
proportional component of the output signal
integral component of the output signal
Description
for monitoring purposes: display PWM pulse ratio 0...1000 ‰
only available for current controlable outputs:
current output current in [mA]
feedback of the function block
(possible messages → following table)
2015-04-01
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