IFM BasicController CR0431, Programming Manual, Page: 168 / 228

168
ifm Programming Manual BasicController relay CR0431 v03.03.00 05 / 2018
ifm function elements ifm function elements for the device CR0431
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Parameters of the inputs
8137
Parameter Data type Description
ENABLE BOOL TRUE: execute this function element
FALSE: unit is not executed
> Function block inputs are not active
> Function block outputs are not specified
CHANNEL BYTE number of the input channel pair:
0 = channel pair 0 = inputs I00 + I01
2 = channel pair 1 = inputs I02 + I03
PRESET_VALUE DINT counter start value
PRESET BOOL FALSE  TRUE (edge):
PRESET_VALUE is loaded to COUNTER
TRUE: Counter ignores the input pulses
FALSE: Counter counts the input pulses
RESOLUTION BYTE evaluation of the encoder resolution:
01 = counts for every fourth edge (= resolution of the encoder)
02 = counts for every second edge
04 = counts for every rising and falling edge
All other values count as "01".
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Parameters of the outputs
8138
Parameter Data type Description
VALUE DINT if RESOLUTION = 1:
VALUE = –536 870 912...536 870 911
(= ¼ area of DINT)
if RESOLUTION = 2:
VALUE = –1 073 741 824...1 073 741 823
(= ½ area of DINT)
if RESOLUTION = 4:
VALUE = –2 147 483 648…2 147 483 647
(= area of DINT)
UP BOOL TRUE: counter counts upwards in the last cycle
FALSE: counter counts not upwards in the last cycle
DOWN BOOL TRUE: counter counts downwards in the last cycle
FALSE: counter counts not downwards in the last cycle
RESULT BYTE feedback of the function block
(possible messages → following table)
Possible results for RESULT:
Value
dec | hex
Description
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
130 82 channel setting is invalid
138 8A resolution setting is invalid