Detailed description
2.12 Block descriptions
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-103
MCP/HHU monitoring (for 810D, 840D)
The following status information regarding communication with the machine control panels is
output in the event of an error:
Available in: Bit No. Description
MCP1StatRec
MCP2StatRec
BHGStatRec
10 Receiver:
Time out
SINUMERIK 840D only:
MCP1StatSend
MCP2StatSend
BHGStatSend
27 Transmitter:
Timeout
In addition, an error entry is generated in the diagnostics buffer of the PLC,
resulting in the following error messages on the MMC:
• 400260: MCP 1 failure or
• 400261: MCP 2 failure
• 400262: HHU failure
In this case, the input signals from the MCP or from the handheld unit (MCP1In/ MCP2In or
BHGIn) are initialized with 0. If it is possible to resynchronize the PLC and MCP/HHU,
communication is resumed automatically and the error message reset by the BP.
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