Siemens SINUMERIK 840Di Function Manual page 980

Detailed description
2.7 Structure and functions of the basic program
Status information
Available in
MCP1StatSendMCP2Stat
Send
BHGStatSend
MCP1StatSendMCP2Stat
SendB
HGStatSend
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 MMC:
• 400260: MCP 1 failure
• 400261: MCP 2 failure
• 400262: HHU failure
An MCP or HHU failure is detected immediately after a cold restart even if no data have yet
been exchanged between the MCP/HHU and PLC.
The monitoring function is activated as soon as all components have signaled "Ready" after
powerup.
MPI connection and 810D (SW 4 and lower)
Communications for MCP and HHU by PLC operating system and parameterization via
SDB210.
Fig. 2-18
Relevant parameters (FB1):
Communication between the PLC and HHU is implemented through configuring and
subsequent loading of SDB210 (Global Data). To allow the basic program to access the
HHU data and implement HHU failure monitoring, the addresses set via global data must be
declared in FB1 parameters.
2-68
Or
MPI connection and 810D
Bit No. Description
4 Syntax error in GD package:
Error in parameter set (FB1)
27 Transmitter:
Timeout
10 Receiver:
Timeout
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Power Line Basic PLC Program (P3)