Siemens SINUMERIK 840Di Function Manual page 1285

MCP/HHU monitoring (840D)
For communication with the machine control panels (MCPs), in the event of an error, the
following status information will be displayed (MPI, Ethernet only):
Available in:
MCP1StatRec
MCP2StatRec
BHGStatRec
SINUMERIK 840D only:
MCP1StatSend
MCP2StatSend
BHGStatSend
In addition, an error entry is generated in the diagnostics buffer of the PLC, resulting in the
following error messages on the HMI:
• 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 reset to 0. If it is possible to resynchronize the PLC and MCP/HHU,
communication is resumed automatically and the error message reset by the GP.
840D example call
An example call for the FB 1 in OB 100 appears below. This example is part of the diskette
with basic program for 840D.
ORGANIZATION_BLOCK OB 100
VAR_TEMP
END_VAR
BEGIN
PLC Basic Program Solution Line (P3 sl)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
OB100_EV_CLASS :
OB100_STRTUP :
OB100_PRIORITY :
OB100_OB_NUMBR :
OB100_RESERVED_1 :
OB100_RESERVED_2 :
OB100_STOP :
OB100_RESERVED_3 :
OB100_RESERVED_4 :
OB100_DATE_TIME :
Call fb 1, db 7(
MCPNum :=
Bit No. Description
10 Receiver:
Timeout
27 Transmitter:
Timeout
BYTE ;
BYTE ;
BYTE ;
BYTE ;
BYTE ;
BYTE ;
WORD ;
WORD ;
WORD ;
DATE_AND_TIME;
1,
Detailed Description
2.12 Block descriptions
2-91