Fc19, Fc24, Fc25, Fc26 - Description Of The Source Code - Siemens SINUMERIK 840D sl Function Manual

13.17.29

FC19, FC24, FC25, FC26 - description of the source code

Task
Machine control panel at the user interface(FC19 M version, FC24 slim-line version, FC25 T
version, FC26 HT 8 version).
Associated blocks
DB7, no. of mode groups, channels, axes
DB7, pointer of the machine control panels,
DB8, storage for the next cycle
Resources used
None.
General
Blocks FC19 (M version), FC24 (slim-line version), FC25 (T version) and FC26 (HT 8 version)
send the signals of the machine control panel to and from the user interface.
Parameter
● Input parameter "BAGNo"
The parameter "BAGNo" is used to select the mode group to be processed. The
"ModeGroupNo" parameter also selects the number of the machine control panel (Bit 4).
● Input parameter "ChanNo"
The parameter "ChanNo" is used to select the channel to be processed.
● Input parameter "SpindleFNo" (not FC26)
The number of the axis/spindle (number of the associated machine axis) in the interface of
which the spindle data is sent is specified in the parameter "SpindleFNo". The spindle
override is transferred to this spindle interface. The parameters are checked for incorrect
parameterization.
● Output parameters "FeedHold" and "SpindleHold" (not FC26)
The output parameters "FeedHold" and "SpindleHold" are formed from the 4 buttons feed/
spindle disable, feed/spindle enable. When the feed/spindle are disabled, the parameter
outputs the value "logical 1".
Information for the next cycle is stored in DB8, bytes 0 to 3 or bytes 62 to 65, depending on
the machine control panel number. This information is the edge trigger flag, feed value and
selected axis number. The blocks are provided with user data via the pointer parameters in
DB7 "MCP1In" and "MCP1Out" ("MCP2In" and "MCP2Out"). The pointers are addressed
indirectly via a further pointer from the VAR section of DB7 in order to avoid absolute
addressing. This additional pointer is determined symbolically in FB1.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
P3: Basic PLC program for SINUMERIK 840D sl
13.17 Block descriptions
1059