Modulo Coversor Nmea/Modbus
MS4911 - NMEA / MODBUS TCPIP Converter Module The MS4911 module allows you to encapsulate any message in the NMEA protocol, arriving via a serial port of the RS485 type, within a function 43 of the MODBUS TCPIP protocol available through an Ethernet cable interface via 10Base connector -T
Connection in IoT CLOUD;
Internal structure ;
Configuration via Web Server;
Connection in CLOUD IoT In addition to this feature, the module has the ability to provide the same information through a platform in CLOUD IoT and store it to provide histories at any time. Internal Structure Internally the module is formed by 2 processors, one in charge of interfacing the physical Ethernet connection through a Socket normally on port 502 and the other in charge of allowing access via Wifi, automatically placing the NMEA information available in IOT CLOUD and its database. for historical. Configuration via Web Server Both processors have access to their internal WebServer that allows the configuration of their parameters. In each server only via Wifi it is necessary that it is connected to an Access Pointer to provide its access via Wifi. In the case of the Ethernet cable processor, it is only possible to access your Server through a Switch connected to an Ethernet Network.
Internal message processing
In its internal structure, the processor in charge of receiving the NMEA code via an RS485 serial interface is even in charge of maintaining the connection with our MQTT Server in CLOUD via a Wifi provided by the client. You can use your GSM modules with AP / Wifi interface. This processor in question is in charge of receiving a quantity of NMEA messages and storing them in its rolling queue for a while. The second processor in charge of executing routines of the Stack MODBUS TCPIP system maintains an internal communication between the two processors and whenever an external request via MODBUS TCPIP in its Socket over port 502 is made, it makes an internal request to the other processor and this by it in turn removes a message from its internal queue and transmits it to this processor, which encapsulates this message in the MODBUS protocol of function 43. This first processor queue is dynamically updated by the external device that generates the NMEA messages delivered on its RS485 serial port. Configurable parameters and monitoring via Wifi:
