Programmable logic controllers (PLCs) are an essential part of the automation sector, particularly factory automation. PLCs are classified as voltage and current inputs and convert real-world signals ...

National Instruments has released two 16-bit, 80-analog-channel USB data-acquisition modules. The USB-6225 samples at 250 ksamples/s, and the USB-6255 samples at 1.25 Msamples/s. The USB-6255’s stated ...

Touted as the world’s first TUV SIL 3 certified Hart failsafe analog input module, the Simatic SM 336 is available for use with Simatic ET 200M I/O and PCS 7F process safety systems. July 1, 2008 A 50 ...

In our previous two issues, we discussed troubleshooting digital output modules. Troubleshooting analog modules is a bit more complicated, for two reasons: Analog modules aren't on/off, as digital ...

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 ...

The 8B50/51 analog voltage input modules have a filter bandwidth of 20 kHz, significantly larger than the 1 kHz bandwidth of earlier models. Accuracy is specified at ±0.10%, and linearity at ±0.05%.

As the latest in the vendor’s line of BusWorks Ethernet I/O modules for distributed I/O and SCADA, the 993EN and 994EN models provide a 16-channel, 16-bit A/D interface for single-ended analog voltage ...