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6.4 Hardening Furnace (OVEN)

Overview

The Hardening Furnace performs heat treatment operations on workpieces. It heats workpieces for a specified duration.

Module Type: OVEN
Serial Number: Cleaned variant of the SPS serial number

Supported Commands

Command Purpose Metadata Typical Duration
PICK Pick workpiece from AGV None ~3 seconds
FIRE Perform heating operation duration (seconds) Configurable (default 10s)
DROP Return workpiece to AGV None ~3 seconds

Supported Instant Actions

Action Purpose Metadata Description
factsheetRequest Request module info None Triggers publication of factsheet message
reset Reset module None Return module to initial state
startCalibration Enter calibration mode None Switch operating mode to TEACHIN
stopCalibration Exit calibration mode None Switch operating mode to AUTOMATIC
setCalibrationValues Update calibration Calibration data Update internal position values

MQTT Topics

Standard module topics:

  • Subscribe: module/v1/ff/<serial>/order, module/v1/ff/<serial>/instantAction
  • Publish: module/v1/ff/<serial>/state, module/v1/ff/<serial>/connection, module/v1/ff/<serial>/factsheet

Command Example: FIRE Operation

Command:

{
  "timestamp": "2024-12-08T11:00:00.000Z",
  "serialNumber": "OVEN001",
  "orderId": "order-heat-789",
  "orderUpdateId": 2,
  "action": {
    "id": "fire-action-abc",
    "command": "FIRE",
    "metadata": {
      "duration": 12
    }
  }
}

State Response (Running):

{
  "headerId": 28,
  "timestamp": "2024-12-08T11:00:02.000Z",
  "serialNumber": "OVEN001",
  "type": "OVEN",
  "orderId": "order-heat-789",
  "orderUpdateId": 2,
  "paused": false,
  "actionState": {
    "id": "fire-action-abc",
    "timestamp": "2024-12-08T11:00:02.000Z",
    "state": "RUNNING",
    "command": "FIRE"
  },
  "errors": [],
  "loads": [{"loadType": "RED", "loadPosition": "MODULE"}]
}

State Response (Finished after 12 seconds):

{
  "headerId": 29,
  "timestamp": "2024-12-08T11:00:14.000Z",
  "serialNumber": "OVEN001",
  "type": "OVEN",
  "orderId": "order-heat-789",
  "orderUpdateId": 2,
  "paused": false,
  "actionState": {
    "id": "fire-action-abc",
    "timestamp": "2024-12-08T11:00:14.000Z",
    "state": "FINISHED",
    "command": "FIRE"
  },
  "errors": [],
  "loads": [{"loadType": "RED", "loadPosition": "MODULE"}]
}

Hardware Details

PLC I/O

Inputs: Light barrier, suction cup position sensors, oven door sensors
Outputs: Suction actuators, oven door actuator, oven heating lamp, vacuum pump, compressor

Errors

  • FIRE_ERROR - Heating timeout or temperature fault
  • PICK_ERROR - Failed to pick workpiece
  • DROP_ERROR - Failed to drop workpiece

Special Behavior

The FIRE operation involves:

  1. Opening oven door
  2. Moving workpiece into oven
  3. Closing door
  4. Activating heating lamp for specified duration
  5. Opening door
  6. Moving workpiece out
  7. Closing door

Related Documentation

OPC UA Variables

Variable Name Description Type
model Model name STRING
stat__idle Status: System is idle BOOL
cmd__pick Command: Pick operation BOOL
cmd__drop Command: Drop operation BOOL
cmd__fire Command: Fire operation BOOL
cmd__fireDuration Command: Duration of fire operation INT
stat__pickFinished Status: Pick process finished BOOL
stat__dropFinished Status: Drop process finished BOOL
stat__fireFinished Status: Fire process finished BOOL
stat__pickFailed Status: Pick process failed BOOL
stat__dropFailed Status: Drop process failed BOOL
cal__processEndTime Calibration time for process end TIME
cal__gripperDownTime Calibration time for gripper down TIME
cal__vacuumReleaseTime Calibration time for vacuum release TIME
stat__dropActive Status: Drop process active BOOL
stat__pickActive Status: Pick process active BOOL
stat__fireActive Status: Fire process active BOOL
version Versioning STRING