Signals From Channel (Db21 - Siemens SINUMERIK 840D sl Function Manual

DB21, ...
DBX10.0 - DBX11.1
Activate channelspecific protection zone 1 ( ...10)
Edge evaluation: no
Signal state 1 or The preactivated, channelspecific protection zone 1 ( ...10) is activated by the PLC user program.
edge change
The protection zone is immediately active.
0 → 1
Only protection zones that have been pre-activated in the part program can be activated.
Signal state 0 or The pre-activated, channelspecific protection zone 1 ( ...10) is de-activated by the PLC user
edge change program.
1 → 0
The protection zone is immediately de-activated.
Only protection zones that have been activated via the PLC and have been pre-activated in the NC
part program can be de-activated.
Application Before a synchronous spindle, for example, is moved into the working range, the relevant machine-
example(s) related protection zone can be activated.
2.2.2

Signals from channel (DB21, ...)

DB21, ...
DBX272.0 – Machinerelated protection zone 1 ( ...10) pre-activated
DBX273.1
Edge evaluation: no
Signal state 1 or The machinerelated protection zone 1 ( ...10) is preactivated in the current block.
edge change (Pre-activated in the part program).
0 → 1
The protection zone can therefore be activated or de-activated in the PLC user program using the
interface signal:
DB21, ... DBX8.0 - DBX9.1 (machine-related protection zone 1 (...10))
Signal state 0 or The machinerelated protection zone 1 ( ...10) is deactivated in the current block.
edge change (De-activated in the part program).
1 → 0
The protection zone can therefore not be activated or de-activated in the PLC user program using
the interface signal:
DB21, ... DBX8.0 to DBX9.1 (activate machine-related protection zone 1 (...10))
Corresponding DB21, ... DBX8.0 - DBX9.1 (activate machine-related protection zone 1 (...10))
to ....
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Detailed Description
2.2 Axis monitoring, protection zones (A3)
65