Siemens SINUMERIK 840Di Function Manual page 643

Interrupt disable
The DISABLE command can be set to protect part program sections from being interrupted
by an interrupt routine. The assignment interrupt signal <-> part program is maintained but
the interrupt routine does not respond to the 0/1 signal transition.
The DISABLE command can be reset with the ENABLE command. Interrupt routines are not
activated until the next 0/1 transition of the interrupt signal.
Clear assignment
The assignment interrupt signal <-> part program is cleared when the following happens:
• Channel in Reset state
• CLRINT instruction in part program.
For more information on the DISABLE, ENABLE, and CLRINT instruction (e.g., syntax), refer
to:
References: /PG/, Programming Guide: Fundamentals
2.7.14 Calling the ASUB outside program operation
ASUB activation states
ASUBs/interrupt routines can also be enabled in the program states or operating modes
listed below, in addition to AUTOMATIC mode and MDA:
• JOG, JOG REF
• MDA Teach In, MDA Teach In REF, MDA Teach In JOG, MDA REF, MDA JOG
• AUTOMATIC, stopped, ready
• Not referenced
be activated.
If an interrupt routine is activated in JOG or REF mode, it will interrupt any jogging and
referencing operations in progress.
Starting conditions
Machine data MD11602 $MN_ASUP_START_MASK can be used to enable the start of
ASUBs for conditions under which ASUBs are otherwise locked by default.
• Stop by means of Stop key, M0, M01
• Not all axes are referenced yet
• Readin disable is active
Mode Group, Channel, Program Operation, Reset Response (K1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Detailed Description
2.7 Program operation mode
2-107