Справочник Пользователя для Mitsubishi Electronics FX
FX Series Programmable Controllers
Devices in Detail 4
4-37
4.12.5
Externally Adjusted Registers
The FX
0
and FX
0N
have built in “setting
p o t s ” w h i c h a r e u s e d t o a d j u s t t he
c o n t e nt s o f c e r t a i n de d i c a t e d da t a
registers. The contents of these registers
can range from 0 to 255. This is a built in
feature and requires no additional setup
or programming.
The FX, FX
c o n t e nt s o f c e r t a i n de d i c a t e d da t a
registers. The contents of these registers
can range from 0 to 255. This is a built in
feature and requires no additional setup
or programming.
The FX, FX
2C
and FX
2N(C)
do not have
this feature, however, an additional
special function unit is available which
provides the same function. For the FX
and FX
special function unit is available which
provides the same function. For the FX
and FX
2C
the unit is the FX-8AV. For
FX
2N(C)
the unit is the FX
2N
-8AV-BD. To
use this unit requires the applied instructions VRRD function 85 (Volume Read) and VRSC
function 86 (Volume Scale).
function 86 (Volume Scale).
Uses:
•
This facility is often used to vary timer settings, but it can be used in any application
where a data register is normally found, i.e. setting counters, supplying raw data, even
selection operations could be carried out using this option.
where a data register is normally found, i.e. setting counters, supplying raw data, even
selection operations could be carried out using this option.
FX
0(S)
FX
0N
FX
FX(
2C)
FX
2N(C)
Number of
setting pots
1 point
2 points
8 points: Supplied by using the additional special
function block
FX-8AV or FX
2N
-8AV-BD
Number of
controlled
data registers
1: D8013
1: D8013 or
D8030,
2: D8031
D8030,
2: D8031
Selected by the user when applied instructions
VRRD and VRSC are used.
RUN
STOP
6 7
5
5
Setting pot
of an FX
of an FX
0