P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
997
Configuration steps
• Select function of diagnostics block.
• Define suitable data for the recording as signal recorder or data triggering.
• Find a suitable point or points in the user program for calling the diagnostics FB.
• Create a data block for the ring buffer, see call example.
• Call the diagnostics FB with parameters in the user program.
In function 1, it is advisable to clear the ring buffer with the "ClearBuf" parameter. When the recording phase with
function 1 is completed, read out the ring buffer DB in STEP7 with the function "opening the data block in the data
view". The content of the ring buffer DB can now be analyzed.
Call example
FUNCTION FC 99: VOID
TITLE =
VERSION : 0.0
BEGIN
NETWORK
TITLE = NETWORK
CALL FB 29, DB 80 (
Func
:= 1,
Signal_1
:=M
100.0,
Signal_2
:=M
100.1,
Signal_3
:=M
100.2,
Signal_4 :=M
100.3,
Signal_5
:=M
10.4,
Signal_6
:=M
100.5,
Signal_7
:=M
100.6,
Signal_8
:=M
100.7,
NewCycle
:= TRUE,
Var1
:= MB
100,
BufDB
:= 81,
ClearBuf
:=M
50.0);
END_FUNCTION
