Siemens SINUMERIK 840D sl Function Manual page 976

P3: Basic PLC program for SINUMERIK 840D sl
13.17 Block descriptions
Approvals
When one MCP is switched over to another, any active feed or axis enables will be retained.
Note
Keys actuated at the moment of switchover remain operative until the new MCP is activated
(by the HMI, which is subsequently activated). The override settings for feedrate and spindle
also remain valid. To deactivate actuated keys, the input image of the machine control signals
must be switched to nonactuated signal level on a falling edge of DB10.DBX104.0 (MCP 1
ready). The override settings should remain unchanged. Measures for deactivating keys must
be implemented in the PLC user program (see example "Override Changeover").
The call is permitted only in cyclic program OB1.
Declaration of the function
FUNCTION_BLOCK FB9
VAR_INPUT
END_VAR
VAR_OUTPUT
END_VAR
Description of formal parameters
Signal
Ackn:
OPMixedMode:
976
Ackn: BOOL;
OPMixedMode: BOOL:= FALSE;
ActivEnable: BOOL:=TRUE;
MCPEnable: BOOL:=TRUE;
Alarm1: BOOL;
Alarm2: BOOL;
Alarm3 : BOOL;
Alarm4 : BOOL;
Alarm5 : BOOL;
Alarm6 : BOOL;
Report : BOOL;
ErrorMMC : BOOL;
Typ Type
e
I BOOL
I BOOL
// Acknowledge interrupts
// Mixed operation with non-M-to-N-
enabled OP // deactivated
// Not supported
// Activate MCP switchover
// Interrupt: Error in HMI bus address,
bus type!
// Interrupt: No confirmation HMI 1
offline!
// Interrupt: HMI 1 is not going offline!
// Interrupt: No confirmation HMI 2
offline!
// Interrupt: HMI 2 is not going offline!
// Interrupt: Queuing HMI is not going
online!
// Message: Signoflife monitoring
// Error detection HMI
Value range Description
0 (FALSE), 1 (TRUE) Acknowledge interrupts
0 (FALSE), 1 (TRUE) Mixed operation deactivated for OP
without M:N capability
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions