Siemens SINUMERIK 840DE SL - Page 1141

Detailed description
2.12 Block descriptions
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-229
Basic structure in NCK:
6HPDSKRUH 
6HPDSKRUH 
6HPDSKRUH "
6HPDSKRUH "
M
Q
M
Q
:ULWHLQ
1&.
7UDQVIHU
GDWDIURPWR
3/&
5HDGGDWD
IURP3/&
5HDGLQ
1&.
Variable value ranges
The following signals are relevant:
Signal I/O Type Value range Remarks
Enable I Bool = FC 21 active
Funct I Byte 3 ,4 3: Read data
4: Write data
S7Var I Any S7 data area, except
local data
Source/destination data storage
area
IVAR1 I Int 0..1023 Position offset
IVAR2 I Int -1 .. 1023 Semaphore byte
Transfer without semaphore: -1
Error Q Bool
ErrCode Q Int 20: Alignment error
21: Illegal position offset
22: Illegal semaphore byte
23: No new data to be read
24: Cannot write data
25: Local data parameterized for
S7Var