Controller EM-481 was designed to connect any equipment that supports Modbus protocol and cloud monitoring systems

The controller is delivered with a free cloud-storage space provided by the Overvis platform (https://www.overvis.com). Therefore, EM-481 is an almost “out of the box” product for the remote monitoring and control of industrial equipment.

Features

SMS-management and email notifications:

• allows flexible configuration of SMS and email notifications via a web interface
• responds to the SMS commands: relay turn on/off, parameter values request
• logs messages for a complete history of the event triggering
• sends SMS directly from the device without dependence on an Internet connection

Collection of data history:

• continuous reading of parameters from devices connected via RS-485 MODBUS RTU/ASCII
• cloud storage with no limitations on the number of readings (with guaranteed storage of info for 1 month)
• data represented as a table and graph for any given period
• comparing of graphs or value lists for several parameters
• collected data exportable into Excel or CSV file

Realtime telemetry and control:

• realtime parameter values output of connected devices
• recording values into device MODBUS registers (for remote configuration/programming)
• widgets with the values of key parameters and alarms on a dashboard
• customized panels with configurable parameters for real-time visualization of the processes, parameters output and controls

Advantages

Easy to connect:

• access from anywhere with no need for additional configuration
• built-in system to bypass firewalls
• works with dynamic IP addresses without any need for external static IP
• Internet access via GSM (SIM card is inserted into the device)
• interface designed with the requirements of mobile devices in mind
• connects to working MODBUS networks without affecting the existing external management system or SCADA

A key advantage of EM-481 is how it can easily combine a range of facilities into a single configurable system. This enables the administrator to consolidate data into a single report.

Additional Features

Control logic is stored locally

• programming of action logic uses a simple language executable on the EM-481 itself
• setpoints of connected devices can be adjusted according to values read from other devices
• SMS are sent directly from the device without dependence on an Internet