Siemens SINUMERIK 840D sl Function Manual page 1091

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:
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 operator interface:
• 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.
Call example for SINUMERIK 810D
An example call for the FB 1 in OB 100 appears below. This example is part of the diskette
with the basic program for 810D.
ORGANIZATION_BLOCK OB 100
VAR_TEMP
END_VAR
BEGIN
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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 :=
MCP1In :=
MCP1Out :=
Bit No. Description
10 Receiver:
Time-out
27 Transmitter:
Time-out
BYTE ;
BYTE ;
BYTE ;
BYTE ;
BYTE ;
BYTE ;
WORD ;
WORD ;
WORD ;
DATE_AND_TIME;
1,
P#E0.0,
P#A0.0,
Detailed description
2.12 Block descriptions
107