Siemens SINUMERIK 840DE SL - Page 972

Detailed description
2.7 Structure and functions of the basic program
Power Line Basic PLC Program (P3)
2-60 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Example
The project in the example requires 4 integer values, 2 hexadecimal fields with bit
information and 1 real value.
Machine data:
MD14510 USER_DATA_INT[0] 123
MD14510 USER_DATA_INT[1] 456
MD14510 USER_DATA_INT[2] 789
MD14510 USER_DATA_INT[3] 1011
...
MD14512 USER_DATA_HEX[0] 12
MD14512 USER_DATA_HEX[1] AC
...
MD14514 USER_DATA_FLOAT[0] 123.456
BP parameters (OB 100):
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,
NCCyclTimeout := S5T#200MS,
NCRunupTimeout := S5T#50S;
BP parameters (to scan runtime):
l gp_par.UDInt; //=4,
l gp_par.UDHex; //=2,
l gp_par.UDReal; //=1 )
During PLC run-up, DB20 was generated with a length of 28 bytes:
DB 20
DB 20
Address Data
0.0 123
2.0 456
4.0 789
6.0 1011
8.0 b#16#12
9.0 b#16#AC
10.0 e+02