P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
Basic Functions
932 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
MCP/HHU monitoring (840Dsl)
The following alarms are displayed at HMI in cases of errors for the communication with the machine control
panel (MCP):
• 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.
Call example for 840Dsl
An example call for the FB 1 in OB 100 appears below. This example is part of the diskette with basic program for
840Dsl.
ORGANIZATION_BLOCK OB 100
VAR_TEMP
OB100_EV_CLASS : BYTE ;
OB100_STRTUP : BYTE ;
OB100_PRIORITY : BYTE ;
OB100_OB_NUMBR : BYTE ;
OB100_RESERVED_1 : BYTE ;
OB100_RESERVED_2 : BYTE ;
OB100_STOP : WORD ;
OB100_RESERVED_3 : WORD ;
OB100_RESERVED_4 : WORD ;
OB100_DATE_TIME : DATE_AND_TIME;
END_VAR
BEGIN
CALL FB 1, DB 7 (
MCPNum := 1,
MCP1In := P#E0.0,
MCP1Out := P#A0.0,
MCP1StatSend := P#A8.0,
MCP1StatRec := P#A12.0,
MCP1BusAdr := 6,
MCP1Timeout := S5T#700MS,
MCP1Cycl := S5T#200MS,
NC-CyclTimeout := S5T#200MS,
NC-RunupTimeout := S5T#50S);
//INSERT USER PROGRAM HERE
END_ORGANIZATION_BLOCK
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