Control Devices - Mitsubishi MELSEC F FX-40DU-E Handy Manual

3. STARTUP
3.3
Control
Devices
This section deals with the control devices sent from the programmable controller to the FX-40DU-E,
for example to select screens i n the USER SCREEN MODE or t o display multiple, overlaid screens.
Control device settings are specified i n the system settings in the OTHER MODE of the screen creation
software (FX-PCS-DUIAT).
.
Bit devices:
8
points (bO to b7) specified.
Programmable controller devices: auxiliary relays (excluding special auxiliary relays).
bO:
(For display of multiple, overlaid screens i n the USER SCREEN MODE.
b l :
For details see the chapter on the USER SCREEN MODE.)
1
b2:
When ON, the screen back-lighting goes off after the specified time has elapsed.
b3:
When ON, all the data sampled in the SAMPLING MODE is cleared.
b4: ON while sampling is being performed.
b5:
Comes on for exactly one minute starting when the alarm time set by time setting i n
* 2
the OTHER mode is reached.
1
b6: Comes ON when the FX-40DU-E battery is getting low
L b 7 : Not used
*1
These devices give instructions from the programmable controller to the FX-40DU-E
Programmable controller program example (in which bO to b3 have been assigned to M I 0 0 to
M103)
to
*2 These devices give instructions from the FX-40DU-E to the programmable controller,
Programmable controller program example (in which b4 to b6 have been assigned t o M I 0 4 to
M106)
Data devices: Specify six data register points (specify consecutive numbers)
- ,
These are used by the programmable controller to specify the screen numbers
D
0 + 2
m
for multiple screens to be overlaid in the USER SCREEN MODE.
-
- -
i '
D
0 + 3
1
0+4
,
These are used to store the screen numbers of screens being displayed in the
D 0 + 5
- 1
USER SCREEN MODE.
For details, see the chapters on the relevant modes
Assignment range: Specify the head device number.
Bit devices Data devices
1
Auxiliary relay
1
Data register