In our previous issue, we said a digital output module could be tested by using the PLC logic to force the output on and off then and observing the module’s response. If the module doesn't respond, ...

Here’s the reference schematic of the digital power supply module. As explained in the first installment of this serial article, dc output voltage and current levels are constantly monitored (and ...

Two new eight-channel, configurable Digital Input/Output (DIO) Modules have joined WAGO Corporation's IP67 SPEEDWAY 767 I/O-SYSTEM. Configurable channel-by-channel, the 767-5801 & 767-5802 modules ...

This post describes the preliminary results of a small Hall-Sensor module. This is widely known as KY-024 module. The KY-024 sensor module I got from an online retailer is inexpensive, and the ...

Designers of digital systems are familiar with implementing the 'leftovers' of their digital design by using FPGAs and CPLDs to glue together various processors, memories, and standard function ...

To meet safety requirements, positively driven feedback contacts must be evaluated in a manner that is appropriate for safety technology. This module evaluates this data internally, making it just as ...

In previous issues, we have discussed troubleshooting input modules. In the examples, the output modules checked out OK. But what if they don't? As with input modules, output modules can be digital or ...