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BasicController CR0403
PWM1000
Unit type = function block (FB)
Unit is contained in the library ifm_CR0403_Vxxyyzz.LIB
Symbol in CODESYS:
35763
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Description
35328
PWM1000 handles the initialisation and parameter setting of the PWM outputs.
The FB enables a simple use of the PWM FB in the device. For each channel an own PWM frequency, the mark-to-space ratio and the dither can be set.
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The PWM frequency FREQUENCY can be directly indicated in [Hz] and the mark-to-space ratio
VALUE in steps of 1 ‰.
Parameters of the inputs
Parameter
ENABLE
CHANNEL
FREQUENCY
VALUE
DITHER_FREQUENCY
DITHER_VALUE
Data type
BOOL
BYTE
WORD
WORD
WORD
WORD
36019
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 PWM output channel
0...11 for the outputs OUT0...OUT11
PWM frequency in [Hz] allowed = 20...250 = 0x0014...0x00FA
PWM value (mark-to-space ratio) in [‰] allowed = 0...1 000 = 0x0000...0x03E8
Values > 1 000 are regarded as = 1 000 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
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BasicController CR0403
Parameters of the outputs
Parameter
CURRENT
RESULT
Data type
WORD
BYTE
Description only available for current controlable outputs: current output current in [mA] feedback of the function block
(possible messages → following table)
Possible results for RESULT:
Value dec | hex
Description
3
128
130
131
0
1
2
133
134
03
80
82
83
00
01
02
85
86
FB is inactive
FB execution completed without error – data is valid function block is active (action not yet completed) function block is active
– valid values not yet available undervoltage on VBBx channel setting is invalid value for VALUE is invalid value for FREQUENCY is invalid dither setting is invalid
35937
182
BasicController CR0403
5.2.7 Function elements: system
Content
35718
Here we show you ifm functions that enable you to
• manage memory contents
• read information from software and hardware
• set or read various data and parameters
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