Siemens SINUMERIK 840D sl, Function Manual

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Detailed description
2.12 Block descriptions
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
193
Status definition
A general rule for the acknowledgment status is that the state information 1 to 7 leads to the
termination of the command. If FC 8 receives one of the statuses, the "Interface active bit" of
the interface specified in FC 8 is reset to "0" (see also interface lists DB 71 to DB 73), thus
completing the operation. The response if different in the case of status information 103 to
105. When the FC 8 receives one of these items of status information, the “Interface active
bit” of this interface remains at “1”. Further processing is required by the user program in the
PLC (e.g., continuation of magazine positioning). This item of status information is generally
used to transfer changes in position of one or both tools while the operation is still in
progress.
Call example
CALL FC 8 (
//Tool-management transfer block
Start := m 20.5, //Start := "1 " => transfer trigger
TaskIdent := DB61.DBB 0,
TaskIdentNo := DB61.DBB 1,
NewToolMag := DB61.DBW 2, //Current position of new tool
NewToolLoc := DB61.DBW 4,
OldToolMag := DB61.DBW 6, //Current position of old tool
OldToolLoc := DB61.DBW 8,
Status := DB61.DBW 10, //Status
Ready := m 20.6,
Error := DB61.DBW 12);
u m 20.6;
//Poll ready
r m 20.5;
//Reset start
spb m001;
//Jumps, if everything OK
l DB61.dbw 12;
//Error information
ow w#16#0;
//Evaluate error
JC error;
//Jumps to troubleshooting
m001:
//Normal branch
error:
//Troubleshooting
r m 20.5:
//Reset start