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Standard function blocks
196
02/16 MN05013001Z EN
BT, data block transfer
The function block is used to transfer values from one marker
range to another (copy data). The marker ranges can be
overwritten with a particular value (data initialisation). The
following marker types can be transferred and overwritten:
• MB.
• MW.
• MD.
easySafety allows the use of up to 16 data block transfer
function blocks.
Function block
Figure 78:
Data block transfer function block
a
Coil BT..T_: Trigger coil, function block transfers on rising edge.
b
Inputs: BT..I1: Start of the source range or initialisation marker
(MB,MW,MD). BT..I2: Start of destination range.
c
Input BT..NO: Number of bytes to be transferred.
d
Contact BT..E1: Closes when source or destination range is
exceeded.
e
Contact BT..E2: Closes when source and destination range
overlap.
f
Contact BT..E3: Closes when the offset is invalid.
BT...
Block Transmitter
a
b
c
e
d
f
E1
E2
>I1
>I2
E3
T_
>NO
DW
DW
DW
Содержание easySafety
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