A53 Z0 9 0020 L En Technical documentation
15.4
COM3: USB
This communication port is no longer used in firmware as from version 2.0.
PC connection is now provided via the RJ45 Ethernet communication port.
15.5
COM4: ETHERNET
The Ethernet port features the following communication possibilities:
Visualization and configuration of GENSYS 2.0 via its internal Web site, or using CRE Config
software (starting from GENSYS 2.0 firmware v3.00).
Modbus TCP control of GENSYS 2.0 using SCADA equipment.
15.5.1
Modbus TCP
To communicate through Modbus TCP, you need to set up the following data on GENSYS 2.0:
IP address of the GENSYS 2.0 which can be set up in menu “System/Communication ports
config./COM4(ETHERNET)”.
Modbus TCP port [E4083] which can be set up in the menu “System/Communication ports
config./COM4(ETHERNET)”.
On firmware older than v4.03, also configure Modbus slave identifier [E1634] which can be set up
in menu “System/Communication ports config./COM5(RS485: MODBUS RTU).”
Note: The standard Modbus TCP port is 502.
Since firmware v4.03:
GENSYS 2.0 handles up to 4 Modbus TCP connections with external equipments.
GENSYS 2.0 handles Modbus RTU over TCP protocol in addition to the more standard
Modbus TCP protocol. It is not necessary to select the protocol you want to use:
GENSYS 2.0 will detect it automatically and adapt its response to the detected protocol.
For more details on the Ethernet configuration, refer to §5.3.
For more details about supported Modbus functions, refer to §15.6.