560
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
22 External Device – FNC170 to FNC179
22. External Device – FNC170 to FNC179
FNC170 to FNC179 provide conversion instructions for gray codes used in absolute type rotary encoders and
instructions dedicated to analog blocks.
FNC No.
Mnemonic
Symbol
Function
Reference
170
GRY
Decimal to Gray Code Conversion
Section
22.1
171
GBIN
Gray Code to Decimal Conversion
Section
22.2
172
−
−
173
−
−
174
−
−
175
−
−
176
RD3A
Read form Dedicated Analog Block
Section
22.3
177
WR3A
Write to Dedicated Analog Block
Section
22.4
178
−
−
179
−
−
D
S
GRY
D
S
GBIN
D
RD3A
m2
m1
S
WR3A
m2
m1