Detailed description
2.7 Structure and functions of the basic program
Basic logic functions: PLC basic program solution line (P3 sl)
58
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.7.8
Symbolic programming of user program with interface DB
General
Note
The basic program library on the CD supplied with the Toolbox for the 840D contains files
NST_UDTB.AWL and TM_UDTB.AWL.
The compiled UDT blocks from these two files are stored in the CPU program of the basic
program.
A UDT is a data type defined by the user that can, for example, be assigned to a data block
generated in the CPU.
Symbolic names of virtually all the interface signals are defined in these UDT blocks.
The UDT numbers 2, 10, 11, 19, 21, 31, 71, 72, 73 are used.
The assignments have been made as follows:
UDT assignments
UDT
number
Assignment to interface DB
Significance
UDT 2
DB 2
Interrupts/Messages
UDT 10
DB 10
NCK signals
UDT 11
DB 11
Mode group signals
UDT 19
DB 19
HMI signals
UDT 21
DB 21 to DB 30
Channel signal
UDT 31
DB 31 to DB 61
Axis/spindle signals
UDT 71
DB71
Tool management: Load/unload locations
UDT 72
DB 72
Tool management: Change in spindle
UDT 73
DB 73
Tool management: Change in revolver
UDT77
DB 77
MCP and HHU signals with standard SDB 210
UDT1002 DB 2
extended alarms / messages (FB 1-Parameter
"ExtendAlMsg:=TRUE"
To symbolically program the interface signals, the interface data blocks must first be
symbolically assigned using the symbol editor.
For example, symbol "AxisX" is assigned to operand DB31 with data type UDT 31 in the
symbol file.
After this input, the STEP 7 program can be programmed in symbols for this interface.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...