ModbusNews

With Modbus alert: Master describes register – Web-IO send email
Systems that are controlled via Modbus are mostly closed systems. The monitoring system is done via a central computer, where special or critical operating states are indicated or signaled. The new generation of Web-IO boxes provides the Modbus master, depending on model, up to 12 virtual registers (coils) are available. Setting this register does not alter anything on the real status of the Web-IO-IO, but it is triggered, an internal alarm. The forthcoming alarms inform the user of the Web-IO, depending on the configuration, via email, SNMP trap or Syslog. Also a log of alarms via FTP. Thus, the Modbus master signal operating conditions even across different locations.

Modbus in the browser: Written by the master process IO Data brings the web in the browser
Modbus systems are usually monitored with the help of host computers that are specially adapted visualization software has been installed. This allows the number of jobs, the view in the system is limited. The new generation of Web-IO box opens Modbus systems the way to current Web technologies. This is the Web-IO 128 bytes free writable memory in the form of virtual registers available. The Modbus master can write any process data in these registers. Via simple HTTP requests can process data from web applications are read and displayed in the browser. A tabular display of the register contents is implemented in the Web-IOs already. JavaScript, AJAX and PHP can process data processed as desired and are displayed graphically.

With Modbus TCP Switching: Access to digital inputs, outputs and counters
The new generation of Web-IO allows not only reading and Input-/Output-Status counters depending on the model, the switching of up to 12 outputs.

Modbus and web: Systems with Web services combine existing
With support Modbus TCP, W&T Web-IO boxes now another protocol in automation technology. Integration with existing systems is thanks to the standard Modbus protocol is a breeze.

For more information: data sheets, online ordering and instructions Sheet & Order Online: Web-IO 2x Digital In, Out 2xDigital Sheet & Order Online: Web-IO 12x Digita In, Out 12xDigital Sheet & Order Online: Web-IO 12x Digital In, 6 x Relay Out Guide extract for the Modbus