Siemens SINUMERIK 828D Function Manual page 936

P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
State
WORD H WORD L
0 3
1 ... 8 4
0 5
0 6
0 7
1 ... 8 8
0 9
1 ... 8 10
0 11
0 12
1 ... 8 13 (0x0d)
Configuration steps
Proceed as follows to read NC variables:
• Select variables with the NC VAR selector.
• Save selected variables in a *.VAR file
• Generate a STEP 7 *.STL source file.
• Generate a DB with the associated address data.
• Enter the symbol for the generated DB in the symbol table so that it is possible to access the address
parameters symbolically in the user program.
• Set FB2 parameters
936
Significance
Negative acknowledgment, job
not executable
Insufficient local user memory
available
Format conversion error
FIFO full
Option not set
Incorrect target area (RD)
Transmission occupied
Error in variable addressing
Address of variable invalid
NumVar = 0
ANY data reference incorrect
Note
Internal error, try:
NC RESET
Read var. is longer than specified in
RD1 to RD8; in high byte number of
var, in which error occurred
Error on conversion of var. type
double: Var. is not within S7 REAL
area
Job must be repeated since queue is
full
BP parameter "NCKomm" is not set
RD1 to RD8 may not be local data
Job must be repeated
Unit or column/line contains value 0
Check Addr (or variable name), area,
unit
Check parameter NumVar
NcVar date required has not been
parameterized
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions