Local Function Blocks; Module Initialization (G3F-Rd3A: Rtd3Ini, G4F-Rd2A:rtd2Ini) - LG GLOFA G3F - RD3A User Manual

Chapter 4. FUNCTION BLOCKS

4.2 Local Function Blocks

4.2.1 Module Initialization (G3F-RD3A: RTD3INI, G4F-RD2A:RTD2INI)

Module initialization function block specifies RTD input module base location, slot location, run channel
enable/disable and the type of RTD for use in program.
Function
I/O Variable
Block
I
REQ
BASE
SLOT
CH
TYPE
O
DONE
STAT
ACT
REMARK
Note 1: The numbers of Array are 8 in G3F-RD3A, 4 in G4F-RD2A.
Data
Type
Function block execution request area
- Used to request an execution of the initialization function block
BOOL
- If the conditions connected with this area are established while program is
running and input condition changes from low to high, the initialization function
block is executed
Base location No.
USINT - Used to write the number of the base where the RTD input module is loaded.
- Setting range: GM1 series(0~31), GM2 series(0~7), GM3/4 series(0-3)
Slot location No.
USINT
- Used to write the number of the slot where the RTD input module is loaded.
- Setting range: 0~7
BOOL Run channel enable/disable specification
[Array] - Used to enable or disable a channel for run.
*Note 1 - Specify "1" for enabling, and "0" for disabling
Specifying the type of RTD for use
BOOL
- Used to specify the type of "0" for Pt100 and "1" for JPt100 for each channel
[Array]
"0" :Pt100
*Note 1
"1" : JPt100
Function block execution complete status
- "1" is output when the initialization function block is finished with no error and
BOOL
"1" remains until next execution. If an error occur, '0' is displayed and the
operation enters into the stop state.
Error status indication area
- Used to output the number of an error when it occurs during initialization function
USINT
block execution.
- For description of errors, see GM Section 7.4
BOOL
Run channel status indication area
[Array] - After the initialization function block is finished with no error, "1" is output if the
*Note 1 channel is in normal state. But "0" is output for the disabled channels.
4 - 2
Descriptions