FEED
Before executing the FEED command, the current coordinate is cleared to zero (0) and then the object moves (positioning control) by the specified movement amount.
Direction of movement is determined by the sign (+, -) and pulse output method of the movement amount.
a) Pulse Output Method: High Active Mode
When the movement direction is plus (+): Forward Positioning
When the movement direction is minus (-): Backward Positioning
b) Pulse Output Method: Low Active Mode
When the movement direction is plus (+): Backward Positioning
When the movement direction is minus (-): Forward Positioning
*For instance,
If the start address is ‘1000’ and the target address is ‘5000,’ the current coordinate (1,000) is cleared to zero (0) and then PLC-S moves forward and stops at ‘5,000’ according to the target address (as opposed to ABS which stops at ‘5000’ and INC which stops at ‘6000’).
Positioning Special Module (PLC-S) Configuration
The X Axis parameter setting is the same as the ABS configuration.
How to configure X Axis Position Data
Position Data No. | Control Pattern | Interpolation | Acceleration Time | Deceleration Time | Control Code | Dwell Time | Operation Speed | Target Address |
1 | Single Step | Non-Interpolation | No. 1 | No. 1 | FEED | 0 | 1,000 | 5,000 |
The Scan Program setting is the same as the ABS configuration.