Coordination Via Plc - Siemens SINUMERIK 840D sl Function Manual

By specifying the identification number, synchronized actions from part programs and from
synchronized actions can be coordinated via the following commands:
Keyword
LOCK(<number>):
UNLOCK(<number>):
CANCEL(<number>):
Can be programmed in the part program
1)
Can be programmed in a synchronized action / technology cycle
2)
3.11

Coordination via PLC

With regard to their execution by the NC, synchronized actions that are not protected can be
locked. Either all synchronized actions in the channel can be locked together or individually in
the ID/IDS 1 - 64 area.
All, channel-specific
Lock all synchronized actions in the channel:
DB21, ... DBX1.2 = 1 (inhibit all synchronized actions)
Individually, channel-specific
Synchronized actions that can be locked
The synchronized actions ID/IDS that can be inhibited are displayed using:
DB21, ... DBX308.0 - 315.7 == 1 (synchronized actions ID/IDS can be locked)
The update of the inhibit signals in the interface by the NC must be actively requested from
the PLC user program:
DB21, ... DBX281.1 = 1 (request: Update synchronized actions that can be locked)
The NC then updates the inhibit signals in the interface, and acknowledges the update by
resetting the request:
DB21, ... DBX281.1 = 0 (acknowledgement: Synchronized actions that can be locked updated)
Lock synchronized actions
For each synchronized action ID/IDS, which is to be inhibited in the channel, the PLC user
program must set the associated inhibit signal:
DB21, ... DBX300.0 - 307.7 = 1 (inhibit synchronized action ID/IDS)
The acceptance of the inhibit signals from the interface in the NC must be actively requested
from the PLC user program:
Synchronized actions
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Meaning
Lock synchronized action
An active positioning action is interrupted.
Continue interrupted synchronized action
An interrupted positioning operation is continued.
Delete synchronized action
An active positioning action is terminated.
Detailed description
3.11 Coordination via PLC
TP SA
1)
- x
- x
x
123
2)
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