Function Interface Of The Measuring Point Softkeys (P1 - Siemens SINUMERIK 840D sl Programming Manual

4.2.1.3 "Function interface of the measuring point softkeys (P1...P4)", in the PLC
General information
This function includes transfer of the status "n. measuring point completed and measure
value saved" to the PLC interface. This has the same significance as activating a
corresponding, vertical measuring point softkey (P1 ... P4), after a successful measurement
in one of the workpiece measuring variants from measuring in JOG.
The function "reject n. measurement → n. measuring point inactive" can be controlled from
the PLC interface – equivalent to the same operator sequence at the HMI when measuring in
JOG.
Description of the PLC user interface
• Signal flow: PLC → measuring in JOG (HMI)
Data
DB19.DB43 Bit 0 = 1
DB19.DB43 Bit 1 = 1
DB19.DB43 Bit 2 = 1
DB19.DB43 Bit 3 = 1
• Signal flow: Measuring in JOG (HMI) → PLC
Data
DB19.DB43 Bit 4 = 1
DB19.DB43 Bit 5 = 1
DB19.DB43 Bit 6 = 1
DB19.DB43 Bit 7 = 1
Example
The functionality shown can be used with a Siemens handheld unit (HHU) – when a
measuring point has been successfully completed, an LED on the HHU keyboard is lit. The
HHU key, assigned to this LED can then act from the sense as rejecting a measuring point.
The PLC user interface signals should be interlocked with the input and output signals of the
HHU using the functionality of the PLC user program.
The use of an HHU should allow the process-related control of a measuring operation.
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Description
Switches softkey "1st measuring point" inactive → reject measurement,
The signal must be displayed on the HMI until DB19.DB43 Bit 4 = 0.
Switches softkey "2nd measuring point" inactive → reject measurement,
The signal must be displayed on the HMI until DB19.DB43 Bit 5 = 0.
Switches softkey "3rd measuring point" inactive → reject measurement,
The signal must be displayed on the HMI until DB19.DB43 Bit 6 = 0.
Switches softkey "4th measuring point" inactive → reject measurement,
The signal must be displayed on the HMI until DB19.DB43 Bit 7 = 0.
Description
If softkey "1st measuring point" active and can be seen on the screen,
Measuring 1st measuring point completed and measured value saved.
If softkey "2nd measuring point" active and can be seen on the screen,
Measuring 2nd measuring point completed and measured value saved.
If softkey "3rd measuring point" active and can be seen on the screen,
Measuring 3rd measuring point completed and measured value saved.
If softkey "4th measuring point" active and can be seen on the screen,
Measuring 4th measuring point completed and measured value saved.
Measuring in JOG
4.2 Workpiece measurement
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