TECHNICAL MANUAL
LARGE DISPLAYS DN109/NB - DN119/NB - DN189/NB - DN129/NB
ANNEX III
MODBUS_TCP:
The modules for “Modbus_master” of MODBUS_TCP are the same as for RTU.
These blocks initiate communication via MODBUS_TCP. It is necessary to set the variable
“MBTCP:Ethernet” correctly.
Fig. 118: MODBUS_TCP communication configuration.
The IP must be configured according to the value assigned in the device's web server. To do this,
generate the variable "MBTCP_Ethernet" and write in its type "TCON_IP_v4", in this way all the
fields are developed automatically. Remember to set the desired IP and “ConnectionType” = 11
(TCP/IP).
The “MB_MODE” input (1 or 0) indicates whether the communication is to read or write registers.
