AXIS_MOVE_ABS
Absolute positioning move with an exactly-integrated trapezoidal profile and in-position confirmation from the axis feedback.
When to use it
Use AXIS_MOVE_ABS when an axis has to be commanded to an absolute position under velocity and acceleration limits, and the sequence downstream must not step forward until the axis is genuinely in position rather than merely commanded there.
Interface
The published port signature. This is the whole of what the block exposes to your program — the implementation body is not shown here and ships with the download.
Inputs
| Port | Type | Unit |
|---|---|---|
| ENABLE | BOOL | — |
| EXECUTE | BOOL | — |
| ABORT | BOOL | — |
| AXIS | UINT | — |
| POS | REAL | u |
| VEL | REAL | u/s |
| ACC | REAL | u/s2 |
| ACT_POS | REAL | u |
| POS_OK | BOOL | — |
| AXIS_READY | BOOL | — |
| IN_POS_WIN | REAL | u |
| SETTLE_TMO | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| IN_POS | BOOL | — |
| CMD_POS | REAL | u |
| CMD_VEL | REAL | u/s |
| DIST_TO_GO | REAL | u |
| CMD_AXIS | UINT | — |
| DONE | BOOL | — |
| BUSY | BOOL | — |
| ACTIVE | BOOL | — |
| COMMAND_ABORTED | BOOL | — |
| ERROR | BOOL | — |
| ERROR_ID | INT | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 11
- Simulated scans
- 151
- Simulator
- v0.1.0
Complete IEC 61131-3 implementation with a published test suite that runs on the vplant simulator. The counts above are that suite, executed on this build.
- Conforms to IEC 61131-3
- Conforms to IEC 61499
Download AXIS_MOVE_ABS — free
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