Siemens SINUMERIK 840D sl Function Manual page 1056

Detailed description
2.7 Structure and functions of the basic program
Relevant parameters (FB1)
MCP
MCP1Stop
MCPBusType=0
Status information
Available in
MCP1StatSend
MCP2StatSend
BHGStatSend
MCP1StatSend
MCP2StatSend
BHGStatSend
MCP1StatRec
MCP2StatRec
BHGStatRec
An error entry is also made in the PLC diagnostic buffer for timeouts (bits 10 and 27),
resulting in the following error messages on the operator interface:
• 400260: MCP 1 failure
• 400261: MCP 2 failure
• 400262: HHU failure
An MSTT or BHG failure is detected immediately after a cold restart even if no data have yet
been exchanged between the MSTT/BHG and PLC.
The monitoring function is activated, as soon as all the components report "Ready" after the
power-up.
840D: MPI connection for HHU (not for new development)
Communications for HHU by PLC operating system and parameterization via SDB210.
Communication for the MCP is controlled from the PLC BP via the NCK and COM module as
described above.
72
MCP2Stop
Bit No. Description
4 Syntax error in GD package:
Error in parameter set (FB1)
27 Transmitter:
Time-out
10 Receiver:
Time-out
Basic logic functions: PLC Basic program powerline (P3 pl)
HHU
BHGRecGDNo
BHGRecGBZNo
BHGRecObjNo
BHGSendGDNo
BHGSendGBZNo
BHGSendObjNo
BHGMPI = FALSE (OPI), TRUE
(MPI)
BHGStop
Function Manual, 11/2006, 6FC5397-0BP10-2BA0