Operating modes

The CNC distinguishes between five operating modes. It is possible to switch over between these operating modes via the operator-control and/or PLC interface, whereby only one operating mode may be active at any one time.

The following operating modes are define:

Table 0.1: Operating modes

Operating mode

ST-Constant

Value

Description

Standby

GCW_250_HLIImcmStandbyMode

1

No operating mode is selected. Default after starting the control.

Automatic

GCW_250_HLIImcmAutomaticMode

2

The control can run a complete NC program automatically. In this case, program execution can be interrupted and resumed.

Manual-Block

GCW_250_HLIImcmMDIMode

3

Movements are commanded by the operator-control computer via a single NC block. The NC block is transferred as a string to the control and executed via a START command. Interruption and resumption of movement are possible in this case.

Manual mode

GCW_250_HLIImcmManualMode

4

Movements are commanded by peripherals connected directly to the control (keys, handwheels).

Homing

GCW_250_HLIImcmReferenceMode

5

The axes can be referenced. An NC program of name rpf.nc is started in this case.

An operating mode may have different states. The states of the individual operating modes and their significance in respect of the operating mode are discussed in the Chapters which follow.