LG Industrial Systems G3F-DA4I, Руководство пользователя

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Chapter 4. FUNCITION BLOCK
4 - 4
4.2.3 Module Write_Single Type(G3F-DA4V / G3F-DA4I : DA4WR, G4F-DA1A : DA1WR)
Module write function block of the Single type is a program for the use in performing for a channel of D/A
conversion module and setting a digital value to be converted into a D/A conversion.
Function
block
I/O Variable
Data
type
Descriptions
REQ BOOL Function Block Execution Request Area
-The execution of function block is requested in this area.
- If the status connected with this area is satisfied on the program execution
and 0 is changed to 1, function block for the module is executed.
BASE USINT Base Location Number Area
- The base No. on which D/A conversion module is mounted is written on this
area.
- Setting range : GM1 series( 0 to 31 ), GM2 series( 0 to 7), GM3/4 series( 0
to 3)
SLOT USINT Slot Location Number Area
- The slot No. on which D/A conversion module is mounted is written on this
area.
- Setting range: 0 to 7
CH USINT Available Channel Specification Area
- Available channels are specified in this area.
-Range:0
～
15(G4F-DA1A : 0
～
1)
input
DATA INT Input Data Type Specification Area
- Input digital data type for each channel is specified in this area.
DONE BOOL Function Block Execution Complete Area
- When function block has been completed with no error, 1 is written and until
next execution, 1 is continuing. When error occurs, 0 is written and
operation come to stop.
output
STAT USINT Error Code Display Area
- When error occurs during function block processing, the error code
number is written.
- For error code, refer to Section 4.4.