PLCs that are Programmable Over the Internet
Source: Triangle Research International (TRi), Inc.
The new T100MD888+ programmable logic controller (PLC) is fully programmable over the Internet using any Java-enabled web browser. The programming software: Internet TRiLOGI is a client/server software suite. The client portion is a Java applet that runs off any web-browser, giving users the ability to remotely program, monitor or control the PLC via the Internet. The server portion is any PC running the TLServer software and connects to the PLC via serial link.
Features of the T100MD888+ include 8 digital inputs, 8 digital outputs and 8 analog I/Os. It also has two MODBUS compatible serial ports and two 10A PWM outputs. The built-in 14-in LCD port is compatible with most LCD modules up to 4 lines x 20 characters.
The PLC is programmed using a unique LADDER + BASIC language which combines the relay-ladder logic language common in most industrial PLCs with a BASIC language interpreter to handle math with ease.Unit selling price of the T100MD888 is $199. The Starter Kit that includes the Internet PLC, the TRiLOGI software and the programming cable sells for $259.