TECHNICAL MANUAL
LARGE DISPLAYS DN109/NB - DN119/NB - DN189/NB - DN129/NB
CHAPTER 24
ETHERNET COMMUNICATION
24-11
Fig. 104: Message in MODBUS/TCP to send the value "
-3270
".
These frames show the sending and response explained in the previous section.
24.2.2.4
Register 14.
It is important that in this case the
starting address
is 14.
This register is used identically to the previous one, but it is used for numeric values of
type double WORD without sign. The range is from 0 to 4,294,967,295. Decimal point, color, and
lightness are handled identically. Table 23 can be used interchangeably for this case.
For example, the same frame is sent as in the register 10 example, but the starting
address is changed to 14. In this case, 4.294.964.026 is displayed, if the device has 10 digits or
more. Otherwise, the display shows “OvL”.
24.2.2.5
Register 00.
It is used to write text on the display (in ASCII characters). Keep in mind that when writing
to a 7-segment led, only certain values can be set (See
). For this, 10 registers are
available, starting at address 0. Each register can contain two ASCII characters.
REGISTER 0
REGISTER 1
·········
REGISTER N
Byte 1
Byte 2
Byte 3
Byte 4
·········
Byte 2*N+1 Byte 2*N+2
<XXh>
<XXh>
<XXh>
<XXh>
·········
<XXh>
<XXh>
ASCII 1 ASCII 2 ASCII 3 ASCII 4
·········
ASCII 2*N+1 ASCII 2*N+2
Table 71: Summary of values to use register 00.
Example:
To facilitate the sending of information, the
You want to display the text "E 523" to indicate an error in an industrial process. The
following content must be sent via Modbus.
REGISTER 0
REGISTER 1
REGISTER 2
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
45h
20h
35h
32h
33h
00h
“E”
“ “
“5”
“2”
“3”
Table 72: Example of the values to display "E 523".
