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5 Typical Application

ENB-302MT can connect Modbus master/slave devices to Ethernet. ENB-302MT is a bridge in the

communication, and completes the conversation of Modbus TCP and Modbus RTU/ASCII.

The following is some typical application of ENB-302MT.

5.1 Ethernet master communicate with multiple serial slaves

Modbus TCP

Master

… …

Modbus

network

… …

Modbus

network

… …

Modbus

network

EtherNet

Host

Computer

ENB-302MT

Modbus RTU/ASCII Slaves

Summary of Contents for ENB-302MT

Page 1: ...Modbus Gateway Modbus TCP Modbus RTU ASCII ENB 302MT User Manual REV 2 3 SiboTech Automation Co Ltd Technical Support 021 5102 8348 E mail support sibotech net...

Page 2: ...e configuration 11 4 2 Search equipment 11 4 2 1 Search all equipments of Ethernet 12 4 2 2 IP search 13 4 3 Configuration 13 4 3 1 Operating Modes 15 4 3 2 Ethernet parameters 15 4 3 3 Serial paramet...

Page 3: ...td The product has many applications The users must make sure that all operations and results are in accordance with the safety of relevant field and the safety includes laws rules codes and standards...

Page 4: ...3 2 3 Technical specifications 1 Achieve the conversation of Modbus TCP and Modbus RTU ASCII 2 Ethernet 10 100M adaptive 3 Support communicates with up to 36 Modbus TCP clients and 512 requests at the...

Page 5: ...nts Power supply voltage control in the prospectus within the scope of the requirements to burn module To prevent water water module will affect the normal work Please check the wiring before any wron...

Page 6: ...ing Modbus TCP connection are disconnected and no longer exists DHCP BOOTP IP address conflict detection Red flashing 3 seconds Modbus TCP connection are disconnected SNS Always green Serial port read...

Page 7: ...n Operation mode read and write configuration data against On Off or On Configuration mode IP address is fixed at 192 168 0 10 this mode can only read and write configuration data can not communicatio...

Page 8: ...n continue to supply power to ensure normal operation Power supply wiring as shown below 3 4 2 Ethernet interface Ethernet interface apply RJ 45 connector 10 100M adaptive GND NC 24V 1 2 3 GND 24V DC...

Page 9: ...8 Bi directional Data 3 4 3 RS 232 RS 485 interface ENB 302MT support standard RS485 and RS232 interfaces RS232 interface Pin Signal Description 1 TX connect with RX of user device 2 RX connect with T...

Page 10: ...MC Site number 32 stations per subsection without repeater and can up to 127 stations with RS485 repeater Plug connection 3 pin pluggable terminal 2 The main points on RS 485 transmission equipments i...

Page 11: ...erver you can set mode bit bit 1 to 1 On and restart ENB 302MT then the fixed IP address of ENB 302MT is 192 168 0 10 mask is 255 255 255 0 gateway address is 192 168 0 1 4 1 Note before configuration...

Page 12: ...s two ways to search the gateway for the user 4 2 1 Search all equipments of Ethernet Click Search equipment button of the main interface the software will search all of the available ENB 302MT equipm...

Page 13: ...software will search ENB 302MT with the IP address in the network and list the information of the equipment in the main interface Note If the users select the IP search the users need enter correct I...

Page 14: ...et 14 Click Configuration button a password authentication dialog box will pop up if the equipment has been set with a password Pass the password authentication or no password and then enter configura...

Page 15: ...h the gateway The other two modes ASC salve mode and ASC master mode will open in a future release Operating mode of ENB 302MTis defined by the serial equipment for example when want to achieve the co...

Page 16: ...Set the device s IP address Subnet mask Set subnet mask of the device Gateway_address Set gateway address of the device DNS1 0 0 0 0 currently only support 0 0 0 0 DNS2 0 0 0 0 currently only support...

Page 17: ...s Parity None Odd Even Mark Space Stop bit 1 2 Data bit 8 currently only support 8 data bits 4 3 4 ID mapping Specify request packets send to which serial port or send to which server Virtual slave ID...

Page 18: ...ge value is automatically calculated When click Add button users can add a message in Slave ID mapping list When want to modify the added information users fist select the information you want to modi...

Page 19: ...ts of specified client priority to send Specify the request The requests of specified slave ID virtual ID or function codes priority to send Priority of requests Conditions Priority Comply with specif...

Page 20: ...munication IP range Password After setting the password users need to enter the password when configurate parameters again If users want to delete the password just put your password is set to empty D...

Page 21: ...tion to the equipment If you do not want to write to the configuration click Cancel button 4 4 Locate When the user manage multiple ENB 302MT you can use Locate function determine equipment that you w...

Page 22: ...www sibotech net 22 4 6 Import Export Import Import the parameters txt to the software Export Save the parameters to the local computer...

Page 23: ...the path to complete the operation Note When the parameters are saved into a txt document you can change the data of the document but please ensure the accuracy of the data or incorrect data will be h...

Page 24: ...www sibotech net 24 4 7 Communication test Communication test can manually send Modbus TCP request to test serial devices Click Communication test button and it will pop up the follow interface...

Page 25: ...ve ID Slave address virtual ID Starting address Starting address of registers or coils Number Number of registers or coils Data above The data to be sent State Status of response there is no response...

Page 26: ...ommunication and completes the conversation of Modbus TCP and Modbus RTU ASCII The following is some typical application of ENB 302MT 5 1 Ethernet master communicate with multiple serial slaves Modbus...

Page 27: ...85 TCP Slave TCP Slave ENB 302MT 5 3 Serial master communicate with serial slave through Ethernet Serial devices communicate via Ethernet can extend the transmission distance Modbus network Modbus net...

Page 28: ...www sibotech net 28 6 Installation 6 1 Mechanical Dimensions Size 40mm Width 125mm Height 110mm Depth 6 2 Installation 35mm DIN rail mounting...

Page 29: ...www sibotech net 29...

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