Tunnel – Reading and periodic sending to an MQTT broker of the MODBUS registers of a PLC. DUAL SIM configuration due to loss of connectivity of an operator.
Scenario details: We have a Modbus RTU PLC. This PLC has in its internal memory a series of variables / registers (for example, a temperature and 3 counters, …) which must be read and periodically sent to an MQTT broker Therefore, the MTX-Tunnel must periodically interrogate the PLC through a serial port every 15 minutes […]
Tunnel – How to provide MQTT communications to master Modbus RTU and Modbus RTU slaves
Scenario details: We have a PLC with RS485 Modbus RTU communications that, acting as master, performs periodic readings of 3 slave devices also with Modbus RTU RS485 communications We want to replicate the same scenario with the same devices, but with IP communications, since it is not possible to make a wiring to find the […]
Tunnel – Reading and writing MODBUS records on an RS232 device using MQTT communication
Scenario details: A special screen with RS232 serial input is available to communicate with using modbus protocol. It is possible to display characters on the screen by writing in its modbus registries through the RS232 serial port We can control the screen remotely via 4G with an MTX modem with MTX-Tunnel firmware To avoid connectivity […]
Tunnel – Reading and sending Modbus registries periodically from a PLC to an FTP server
Scenario details: We have a PLC Modbus RTU. This PLC has a series of variables/registries (for instance, temperature and 3 meter boxes) inside its internal memory, which need to be read and sent periodically to an FTP server That is why the MTX-Tunnel needs to ask the PLC to read said registries every 15 minutes via a […]
Tunnel – Providing IP to Master Modbus RTU and Modbus RTU slaves
Scenario details: We have a PLC with Modbus RTU RS485 communications which, acting as master, performs periodic readings of 3 slave devices also with Modbus RTU RS485 communications It is necessary to replicate that same scenario, with the same RS485 devices, but with IP communications, since it is not possible to carry out a wiring […]
Tunnel – Relays control, MTX modem digital and analog inputs from a SCADA system using Modbus TCP protocol
Scenario details: It is necessary to control 4 relays located in 3 locations, as well as 4 digital inputs and 2 analog inputs. This will use 3 2G/3G/4G modems, each in a different location The communication will be made from a SCADA system using Modbus TCP protocol For simplicity it is intended to use SIM […]
Tunnel – Periodical sending of vehicle’s GPS locations and the registers of Modbus RTU temperature sensor RS485 to a Web server. Occasional 3G-5RS232 gateway for PLC’s firmware actualization
Scenario details: We have a truck whose GPS location and temperature of the 3 temperature sensors should be monitored. The truck is also equipped with a control PLC with RS232 serial port.There should be the possibility to update the PLC’s firmware remotely by the above mentioned serial port at any moment The modem must collect […]
Tunnel – Reading and sending Modbus registers from a PLC to a webserver. Remote and occasional access to PLC registers in real time and for remote update of PLC’s firmware
Scenario details: We have a PLC Modbus RTU. In its internal memory this PLC contains a number of variables/registers (for example, one temperature and three counters,…) which should be read and sent periodically to Web server Therefore, MTX-Tunnel should request periodically (every 15 minutes) the PLC through a serial port in order to read the […]
Tunnel – Reading and writing Modbus registers via SMS
Scenario details: We have a PLC with Modbus protocol and address 1 It is necessary to read different Modbus registers via SMS. Register 10 (current temperature), register 12 (pressure) and register 14 (current humidity) It is also necessary to be able to write “1” via SMS in Modus16 register. This way the PLC will activate […]
Tunnel – Reading modbus Word and Binary registries, sending data to webplaform using JSON object
Scenario details: We want to read 12 modbus registers from a PLC 10 registers are binary and and the other 2 are word. It is necessary to use the modbus command 0x01 to read binary registers and the 0x03 modbus command to read word registers. Binary registers are in the addresses 10,11,12, … 17 and […]
Enter the “ethernet” or “modem” connection type:
For an ethernet configuration, make sure the IP parameters are compatible with server access according to the concentrator local network configuration. For an ethernet connection, the configuration must be compatible with the concentrator’s local network topology so that it can access the servers. This configuration is done from the “Networks” configuration page (see section 3.2.2.3: “Networks”).
For a modem connection, the modem configuration must be correct before a connection can be set up. This configuration is done from the “Modem” configuration page (see section 3.2.2.4: “Modem”).
The parameters for the servers to be configured are at least the following:
Therefore the following fields need to be configured: “Interface”, “Type”, “Server type”, “Address”, “Port”, “Login” and “Password”.
The other fields can be left at the default values subject to the directories having been properly created beforehand. See section 3.1.2: “Configuration files” for more details.
Wait. The concentrator will reboot using its factory configuration.
