104
edits
Changes
Modbus slave integration with FMX125/FMX640 (view source)
Revision as of 16:10, 6 June 2023
, 16:10, 6 June 2023no edit summary
===System Architecture===
===System Architecture===
[[File:MODBUS SLAVE integration topology v1.1.png|center]]
[[File:MODBUS SLAVE integration topology v1.1.png|center|1058x1058px]]
To implement this feature, we must properly implement the Teltonika '''[[Codec#Codec 12|codec 12]]''' protocol in the server. In the device, we need to use '''TCP Binary''' mode. We need to primarily convert the Modbus commands to the '''Codec 12 GPRS commands''' and send them to the Teltonika device. The FM device (Teltonika device) will route these commands to the Modbus field device through '''RS232/RS485 serial interface'''. The response for the Modbus command from the field device will collect by the FM device, packed as a '''GPRS response''', and will send to the server by using Codec 12 protocol. In the server, we need to decode this data according to the Modbus protocol.
To implement this feature, we must properly implement the Teltonika '''[[Codec#Codec 12|codec 12]]''' protocol in the server. In the device, we need to use '''TCP Binary''' mode. We need to primarily convert the Modbus commands to the '''Codec 12 GPRS commands''' and send them to the Teltonika device. The FM device (Teltonika device) will route these commands to the Modbus field device through '''RS232/RS485 serial interface'''. The response for the Modbus command from the field device will collect by the FM device, packed as a '''GPRS response''', and will send to the server by using Codec 12 protocol. In the server, we need to decode this data according to the Modbus protocol.
