Siemens SINUMERIK 840D sl Function Manual page 869

Figure 13-14 Ethernet connection
Relevant parameters (FB1)
MCP
MCPNum=1 or 2 (number of MCPs)
MCP1In
MCP1Out
MCP1StatSend
MCP1StatRec (n.r.)
MCP1BusAdr
MCP1Timeout (n.r.)
MCP1Cycl (n.r.)
MCPMPI = FALSE
MCP1Stop
MCP1NotSend
MCPBusType = b#16#55 (via CP 840D sl)
MCPSDB210= FALSE
MCPCopyDB77 = FALSE
An error entry is also made in the PLC alarm buffer for timeouts. As a result, the following error
messages are output at the HMI:
● 400260: MCP 1 failure
or
● 400261: MCP 2 failure
● 400262: HHU failure
An MCP or HHU failure is detected immediately after a cold restart even if no data has yet
been exchanged between the MCP/HHU and PLC.
The monitoring function is activated as soon as all components have signaled "Ready" after
powerup.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
P3: Basic PLC program for SINUMERIK 840D sl
13.10 Structure and functions of the basic program
MCP2In
MCP2Out
MCP2StatSend
MCP2StatRec (n.r.)
MCP2BusAdr
MCP2Timeout (n.r.)
MCP2Cycl (n.r.)
MCP2Stop
MCP2NotSend
HHU
HHU = 5 (via CP 840D sl)
BHGIn
BHGOut
BHGStatSend
BHGStatRec
BHGInLen (n.r.)
BHGOutLen (n.r.)
BHGTimeout (n.r.)
BHGCycl (n.r.)
BHGRecGDNo
BHGRecGBZNo (n.r.)
BHGRecObjNo (n.r.)
BHGSendGDNo (n.r.)
BHGSendGBZNo (n.r.)
BHGSendObjNo (n.r.)
BHGMPI = FALSE
BHGStop
BHG NotSend
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