Help Function Output To Plc (H2); Signals To Channel (Db21; Signals From Channel (Db21 - Siemens SINUMERIK 840D sl Function Manual

Detailed Description

2.8 Help function output to PLC (H2)

2.8 Help function output to PLC (H2)
2.8.1

Signals to channel (DB21, ...)

DB21, ...
DBX30.5 Activate associated M01
Edge evaluation: no
Signal state 1 or PLC signals the NCK that the associated M01 (help function) should be activated.
edge change
0 → 1
Signal state 0 or De-activate the associated M01 (help function).
edge change
1 → 0
Corresponding to .... DB21, ... DBX 318.5 (associated M01 active)
2.8.2

Signals from channel (DB21, ...)

DB21, ...
DBB58, M, S, T, D, H, F functions Modification
DBB60 - DBB65
Edge evaluation: no
Signal state 1 or One M, S, T, An D, H, or F function has been output to the interface with a new value together with
edge change the associated change signal at the beginning of an OB1 cycle.
0 → 1 In this case, the change signal indicates that the appropriate value is valid.
Signal state 0 or At the start of the next OB1 cycle, the PLC basic program resets the change signals.
edge change The value of the data concerned is not valid.
1 → 0
74
Signal(s) updated:
Signal(s) updated: Jobcontrolled by NCK
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0