Siemens SINUMERIK 840Di Function Manual page 1252

Detailed Description
2.7 Structure and functions of the basic program
Fig. 2-17
Relevant parameters (FB1)
MCP
MCPNum = 1 or 2 (number of MCPs)
MCP1In
MCP1Out
MCP1StatSend (n.r.)
MCP1StatRec
MCP1BusAdr
MCP1Timeout
MCP1Cycl (n.r.)
MCPMPI = FALSE
MCP1Stop
MCPBusType = b#16#33
MCPSDB210= FALSE
MCPCopyDB77 = FALSE
MCP failure switches the PLC to the STOP state. If this is undesirable, OB 82, OB 86 can be
used to avoid a stop. Setting MCPxStop := True deactivates the MCP as a slave via SFC 12.
If the PLC does not switch to the stop state following the failure of or a fault on the MCP, an
interrupt message will be generated via the basic program. The interrupt is deleted when the
station recovers.
2-58
PROFIBUS connection
MCP2In
MCP2Out
MCP2StatSend (n.r.)
MCP2StatRec
MCP2BusAdr
MCP2Timeout
MCP2Cycl
MCP2Stop
HHU
HHU = 5 (via CP 840D sl)
BHGIn
BHGOut
BHGStatSend
BHGStatRec
BHGInLen
BHGOutLen
BHGTimeout
BHGCycl
BHGRecGDNo
BHGRecGBZNo (n.r.)
BHGRecObjNo (n.r.)
BHGSendGDNo (n.r.)
BHGSendGBZNo (n.r.)
BHGSendObjNo (n.r.)
BHGMPI = FALSE
BHGStop
PLC Basic Program Solution Line (P3 sl)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0