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GRT1-CP1-L Positioning Unit
ON
Input A
OFF
ON
Input B
OFF
ON
Input A
OFF
ON
Input B
OFF
Pulse/Direction Counting
The following figure illustrates the operation of pulse/direction counting.
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1
2
3
4
Up/Down Counting
The following figure illustrates the operation of up/down counting.
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2
3
4
■ Action on Input Rising Edge and Action on Input Falling Edge
Select the action to be executed on the rising or falling edge of the digital input
(IN).
Action
No Action
No action is executed.
Capture
The Present Counter Value is stored in the Capture Value Register.
The captured value can be retrieved at any time using the Counter
Data Display Command Bit (bit 04 of word n+2).
Reset
The counter value is reset to 0.
Preset
The counter value is set to the preset value in the Preset Value Regis-
ter.
■ Action upon Bus Error
Select the action to be executed when a bus error occurs.
Action
Outputs are
The output status will be cleared until the bus error is removed, but
Cleared
the counter value will still be updated according to the encoder inputs.
Outputs keep
The output status will continue to be updated and the counter value
functionality
will still be updated according to the encoder inputs.
■ Action upon Bus Idle
Select the action to be executed when the bus goes idle (i.e., when an error
occurs in host communications, such as a DeviceNet or PROFIBUS error).
Action
Outputs are
The output status will be cleared until the bus idle is removed, but the
Cleared
counter value will still be updated according to the encoder inputs.
Outputs keep
The output status will continue to be updated and the counter value
functionality
will still be updated according to the encoder inputs.
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Description
Description
Description
Section 7-5
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