13
Outline
Section 1-1
• Operation Process
1) High-speed analog input by scheduled interrupts with the ladder
program (immediate refresh)
The PRV instruction is executed at each of constant executions of
subroutine programs with the scheduled interrupts (interval timer).
4 to 20 mA signals from the displacement sensor are input, re-
freshed, and stored (trace data) in the I/O memory area (Ex. DM)
of the main unit.
2) Transferring the traced data to the CPU unit
The data traced in the unit is transferred to the CPU unit. (Ex.
Through the cyclic transfer to DM allocated in the CPU unit)
3) Transferring the data to the memory card inserted in the slot of the
CPU unit
The data in the DM area is stored in the memory card as a data
file (.CSV etc) through the FWRIT instruction of the CPU unit.
4) Analysis performed on the spreadsheet software
Through the memory card adaptor connected to the PC, the data
file (.CSV etc) can be analyzed on the spreadsheet software.
5) Line plot displayed on PT (NS series)
The trace data in the CPU unit can be displayed as the line plot on
PT (NS series).
Refresh
Allocated DM area
Memory card
Displacement
value 1
RET
SBN
Interrupt subroutines
Store
Displacement
Sensor
4 to 20 mA
Customizable Counter Unit
CS1W-HCA12-V1
CS-series CPU Unit
Ladder program
Ladder program
Start the interval timer
by STIM instruction
Acquire the analog
input value by PRV
instruction (immediate
refresh)
I/O memory
Displacement
value 2
Displacement
value n
Traced data
I/O memory
Store the data to
memory card
PT (NS series)
Display
a line graph
Store
Содержание CS1W-HCA12-V1
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Страница 20: ...xx Conformance to EC Directives 7...
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Страница 78: ...58 Fail safe Circuits Section 3 5...
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