P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
973
Configuration steps
To be able to read a GUD variable, its name must be stored in a string variable. The data block with this string
variable must be defined in the symbol table so that the "Addr" parameter can be assigned symbolically for FB
GETGUD. A structure variable can be defined optionally in any data area of the PLC to receive the variable
pointer (see specification in following example).
Pulse diagram
0
6
FIFO full
Job must be repeated,
since queue is full
0
7
Option not set
BP parameter "NCKomm" is not set
0
8
Incorrect target area (SD) RD may not be local data
0
9
Transmission occupied
Job must be repeated
0
10
Error in addressing
Unit contains value 0
0
11
Address of variable
invalid
Address check (or variable name),
area, unit
1 ... 8
13 (0x0d)
ANY data reference
incorrect
String/NcVar data required has not
been parameterized
0
15 (0x0f)
String more than 32
characters
GUD variable name too long
(1)
Activation of function
(2)
Positive acknowledgment: variables have been written
(3)
Reset function activation after receipt of acknowledgment
(4)
Signal change by means of FB
(5)
Not permissible
(6)
Negative acknowledgment: Error has occurred, error code in the output parameter "State"
State
Meaning
Note
WORD H
WORD L
'RQH
5HT
(UURU
