It's time to get a little more specific with what the PLC CPU controls: PLC I/O! This article will discuss discrete I/O, analog I/O and briefly introduce industrial communications protocols. We talked ...

The AutomationDirect Productivity2000 PLC system now has 50 discrete and analog I/O modules providing over 400 local I/O points. The AutomationDirect Productivity2000 PLC system now has 50 discrete ...

AutomationDirect has added new discrete and relay I/O expansion modules to the Productivity PLC family. For the Productivity1000 PLC series, a 4-channel, high current relay output module is now ...

Expansion modules snap onto the side of any BRX Micro PLC Unit (MPU) or BRX Remote I/O controller. Newly added BRX discrete I/O modules include 5, 8, and 16-point relay output modules (starting at $55 ...

I/O modules are building blocks of industrial control systems used in end equipment such as PLC (Programmable Logic Controllers), PAC (Programmable Automation Controller) and DCS (Distributed Control ...

I/O modules are building blocks of industrial control systems used in end equipment such as PLC (Programmable Logic Controllers), PAC (Programmable Automation Controller) and DCS (Distributed Control ...

In the previous two issues of this newsletter, we looked at troubleshooting digital input modules. Basically, we looked for the presence or absence of a voltage. With analog modules, it's trickier ...