I just switched from DTV to Charter Digital Cable. I was overjoyed when I saw the serial port for controlling it with the Tivo (rather than the IR). I can't seem to get it working, though. I read the ...

A PLC or programmable logic controller is a type of computer often employed to monitor and control industrial manufacturing operations. The device, which you may see referred to as a programmable ...

While the RS-232, RS-422, and RS-485 serial standards are hardly new, combining them over a single connector creates challenges unforeseen when these standards were first drafted years ago.

One thing's for sure; we are past the heyday of the motion controller as backplane-expansion card with field wiring. There are two main reasons. First is the trouble of finding a consistent source of ...