Ditel DN109/NB Manuel Technique page 174

TECHNICAL MANUAL
LARGE DISPLAYS DN109/NB - DN119/NB - DN189/NB
CHAPTER 24
Fig. 100: Frame in MODBUS/TCP to display the value "-3270".
These frames show the sending and response explained in the previous section.
24.2.2.2 Register 06.
It is important that in this case the starting address is 6.
This register is used identically to the previous one, but it is used for numeric values of
type WORD without sign. The range is from 0 to 65535. Color and lightness are handled
identically.
For example, the same frame is sent as in the register 02 example, but the starting
address is changed to 06. In this case, 62266 is displayed, if the device has 5 digits or more.
Otherwise the display shows "OvL".
24.2.2.3 Register 10.
It is used to send numeric values of type double WORD with sign. The range of values is
-2,147,483,648 to 2,147,483,647.
You have to send between 6 and 8 bytes of information, the starting address being 10.
The first four bytes indicate the value to display (in two's complement). The next two
modify the position of the decimal point. The last two (optional) the color and brightness of the
display.
The color and luminosity values work identically to the previous cases.
REGISTER 10
Byte 1 Byte 2 Byte 3 Byte 4
<XXh> <XXh> <XXh> <XXh>
Numerical Value
Table 67: Summary of the values for registers 10, 11, 12 and 13.
* *
For monochrome displays the color selection byte can be used to manage flicker. Typing 08h starts the
flashing, 09h ends it.
Example:
To easy the information sending,
To show "-32.70" value the following content must be sent.
REGISTER 10
Byte 1 Byte 2 Byte 3 Byte 4
FFh FFh
Numerical Value
ETHERNET COMMUNICATION
REGISTER 11 REGISTER 12
Byte 5
<XXh>
Point Pos.
function Modbus 10h
REGISTER 11 REGISTER 12
Byte 5
F3h 3Ah 02h
Point Pos.
Table 68: Example of the values to display "3270".
REGISTER 13
Byte 6 Byte 7
00h <XXh>
Not used Color
is used.
REGISTER 13
Byte 6 Byte 7
00h 31h
Not used Color
24-10
Byte 8
<XXh>
Luminosity*
Byte 8
34h
Luminosity*