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This manual contains text, diagrams and explanations which will guide the reader in the correct installation
and operation of the FX-2DA special function block and should be read and understood before attempting
to install or use the unit.
Further information can be found in the FX PROGRAMMING MANUAL and FX SERIES HARDWARE
MANUAL.
1
The FX-2DA analog special function block has two output channels. The output channels take a digital value
and output an equivalent analog signal. This is called a D/A conversion. The FX-2DA has a maximum
resolution of 12 bits.
The selection of voltage or current based input/output is by user wiring. Analog ranges of -10 to 10V
(resolution: 5mV), and/or 4 to 20mA (resolution: 20µA) maybe selected.
FX programmable controllers versions 2.0 or later (those with serial number 13XXXX or larger) are
required; as these units have the TO/FROM applied instructions in their instruction set. Data transfer
between the FX-2DA and the FX base unit is by buffer memory exchange. There are 32 buffer memories
(each of 16 bits) in the FX-2DA.
The FX-2DA occupies 8 points of I/O on the FX, FX
either inputs or outputs. The FX-2DA draws 30mA from the 5V rail of the base unit or powered extension
unit.
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FX-2DA
SPECIAL FUNCTION BLOCK
USER'S GUIDE
JY992D52801C
INTRODUCTION
expansion bus. The 8 points can be allocated from
2C
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