Detailed description
2.12 Block descriptions
Basic logic functions: PLC basic program solution line (P3 sl)
106 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
MCP/HHU monitoring (840D)
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.
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
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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