Omron SmartSlice GRT1 Series Operation Manual page 175

GRT1-CT1(-1) Counter Units
Input A
Input B
0
Input A
Input B
0
156
Pulse/Direction Counting
The following figure illustrates the operation of pulse/direction counting.
1 2 3 4 5
Up/Down Counting
The following figure illustrates the operation of up/down counting.
1 2 3 4 5 6
■ 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.
■ 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 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.
■ 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.
■ Default Settings
Press the Default Setting Button on the General Tab Page to set the following
default values.
Setting
Counter Input Mode
Action on Input Rising Edge
Action on Input Falling Edge
6 7 8 7
7 8 7 6
Description
Description
Description
Default value
Phase differential x1
No Action
No Action
Section 6-4
6 5 4 3 2 1
5 4 3 2 1
0
0