
CHAPTER 4
OPERATION
4-5
DN-109NE, DN-119NE, DN-129NE and DN-189NE display series
4.3.
Protocols
In this paragraph, the different protocols will be explained, as well as the programmation of the
displays through them. The formats of values of the numbers and characters are written in this manual
are:
When telling about a hexadecima
l number, this will be followed by an “h”.
When telling about a decimal number, this will be followed by a “d”.
When telling about a binary number, this will be followed by a “b”.
When telling about an ASCII character, this will be explained in the context.
As an example, the X ASCII character can be explained as 58h, 88d or 1011000b, as needed
in the moment. Number 15 ASCII can be seen as 31h 35h, 49d 53d or 110001d 110101d.
4.3.1.
TCP/IP Protocol
In order to use TCP/IP and Modbus/TCP protocols, the communication port must be
programmed with the default configuration. See 4.2.3.6
“Parameter 6: Load the default configuration to
the port
”.
In order for the display to be able to accept a block, it must end with an end of block that is
recognised by the display. The end of block coding which the display expects to receive can be found
in 4.2.3.2
“Parameter 2:End of Block. Only TCP/IP and UDP/IP protocols”
The last character sent is displayed on the right of the display.
Port 10001 must be used.
4.3.2.
UDP Protocol
In order for the display to be able to accept a block, it must end with an end of block that is
recognised by the display. The end of block coding which the display expects to receive can be found
in 4.2.3.2
“Parameter 2:End of Block. Only TCP/IP and UDP/IP protocols”
The last character sent is displayed on the right of the display.
In order to use UDP protocol, the communication port must be programmed with the default
configuration (See 4.2.3.6
“Parameter 6: Load the default configuration to the port”.) excepting the
following parameters.
Local port 10001 must be used for UDP/IP.
UDP Datagram Mode
Datagram Type
must be set to 01.
Active Connection
Remote Host:
IP address of the computer to which it is connected.
Remote Port:
Port of the computer to which it is connected.
See 4.5.1
“Configure to use the UDP/IP protocol” to learn how to make changes.
4.3.3.
Modbus/TCP Protocol
End of block not necessary.
The last character sent is displayed on the right of the display.
Port 502 must be used
.
The data block transmitted must have the following values:
Byte 6. Slave ID = 01h.
Byte 7. Function Code = 16(10h)
Byte 8 and 9. Start address = 00h 00h.