Siemens SINUMERIK 840D sl Function Manual page 2062

Detailed Description
2.2 Axis monitoring, protection zones (A3)
DB21, ...
DBX274.0 –
Channelspecific protection zone 1 (...10) pre-activated
DBX275.1
Edge evaluation: no
Signal state 1 or The channelspecific 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, ... DBX10.0 - DBX11.1 channel-specific protection zone 1 (...10))
Signal state 0 or The channelspecific 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, ... DBX10.0 - DBX11.1 (channel-specific protection zone 1 (...10))
Corresponding DB21, ... DBX10.0 - DBX11.1 (activate channel-specific protection zone 1 (...10))
to ....
DB21, ...
DBX276.0 – Machinerelated protection zone 1 (...10) violated
DBX277.1
Edge evaluation: no
Signal state 1 or The activated, machinerelated protection zone 1 ( ...10) is violated in the current block or in the
edge change current JOG movement.
0 → 1
The pre-activated, machinerelated protection zone 1 ( ...10) would be violated in the current block if
it would be activated by the PLC.
Signal state 0 The activated, machinerelated protection zone 1 (...10) is not violated in the current block.
or edge change
The pre-activated, machinerelated protection zone 1 (...10) would not be violated in the current
1 → 0
block if it would be activated by the PLC.
Application Before parts are moved into the working zone - this IS can be used to check as to whether the tool
example(s) or workpiece is located in the machinerelated protection zone of the part to be moved in.
DB21, ...
DBX278.0 - Channelspecific protection zone 1 (...10) violated
DBX279.1
Edge evaluation: no
Signal state 1 or The activated, channelspecific protection zone 1 ( ...10) is violated in the current block.
edge change
The pre-activated, channelspecific protection zone 1 ( ...10) would be violated in the current block if
0 → 1
it would be activated by the PLC.
Signal state 0 or The activated, channelspecific protection zone 1 ( ...10) is not violated in the current block.
edge change
The pre-activated, channelspecific protection zone 1 (...10) would not be violated in the current
1 → 0
block if it would be activated by the PLC.
Application Before parts are moved into the working zone - this IS can be used to check whether the tool or
example(s) workpiece is located in the channelspecific protection zone of the part to be moved-in.
66
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0