Introduction to the cLAN-MQ

Purpose of this manual

The purpose of this manual is to provide the instructions to quickly and easily install and operate the cLAN-MQ

The installation of the cLAN may implies the installation an MQTT broker

Telemetry and control solutions with cLAN

The cLAN-MQ has multiple uses. These are the most common uses that will guide you to read this manual.

Ethernet RTU/Datalogger to MQTT broker

There are hundreds of types of sensors that can be contacted directly to the cLAN-MQ inputs to measure different types of variables. Depending on the cLAN-MQ model, sensors could be used to deliver signals in 0-10V, 4-20mA or pulses, or simply connect different devices to their inputs/outputs. The cLAN-MQ can also be configured as Modbus master and queries can be made to different slaves to expand its inputs/outputs.

The cLAN works as a datalogger, creating records with timestamp with the value of the built-in or external I/Os and publish them to the broker

The cLAN can also be used to do a local control over its inputs/outputs using the script programming feature.

Nota: Exemys does not provide the MQTT broker

For this type of solution the following procedure must be followed:

RTU/Controller with SNMP agent (V1)

The cLAN can work as a SNMP agent. This allows the user to get the valor of the digital an analog channel from a SMNP manager.

It can send SNMP traps also. They can be triggered by a change on a digital input or if an analog input goes over a high/low value.

For this type of solution the following procedure must be followed:

Remote serial port

This procedure will allow you to send and receive data to and from the serial port (RS232/RS485) using publish and subscribe.

For this type of solution the following procedure must be followed:

Programmable protocol converter

Using script programming is possible to use the cLAN as a protocol converter. It can be programmes to parse new protocols over it's serial port. The acquired data can be read using Modbus RTU/ASCII on the other serial port, por Modbus TCP on its Ethernet interface. Some typicall aplications are using the cLAN to get Modbus data from scales, water quality analyzers, oil quality analyzers, card readers, weather stations, etc.