Parameters - Siemens SINUMERIK 840C Operator's Manual

01.99
Reset key
Single block
© Siemens AG 1999 All Rights Reserved
SINUMERIK 840C, OEM Version for Windows (BA)
When you operate the "Reset" key:
• Execution of the current part program is interrupted, if the key releases a
mode group reset (= reset of all channels).
• Messages are cleared from the monitoring system unless they are POWER
ON or acknowledgement alarms.
• The control is switched to the "Reset" state, i.e.
− The NC control remains synchronized with the machine.
− All buffer and user memories are cleared (but the contents of the part
program memory are retained).
− The control is in the Reset state and ready for a new program run.
Machine manufacturer
The machine manufacturer can configure the RESET key such that it acts on
channel/mode group or on the whole NC.
This function allows you to execute a part program on a block-by-block basis.
The "Single block" function can be activated in the AUTOMATIC, TEACH IN
and MDA modes.
When SINGLE BLOCK operation is active:
• The SBL (Single Block) message is shown on the CRT display,
• The current block of the part program is executed only when you press the
"NC start" key,
• When the current block has been executed, processing is stopped,
• The following block can be executed by pressing the "NC start" key again.
The function does not work with calculation blocks. Calculation blocks are part
program blocks which execute programmed calculations (R parameters
calculation operations), but do not output anything to the machine or to the
PLC.
If SINGLE BLOCK is activated, the corresponding LED lights up on the
machine control panel.
The function can be deselected by pressing the key again.
6FC5198-6AA60-0BP1
2 Operator Interface
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