If used for noise suppression, C2 should have a value so the time constant R2 × C2 corresponds to one-third the sensor or PLC output’s maximum operating frequency.

You have to (in nearly all cases) use a DMM to see what the output level is. You need to know the range (e.g., 4mA to 20mA) and possibly the scale (e.g., 1 to 1,600 on the PLC register) for this ...

The Click C0-04TRS-10 ($54.00) is a 4-point, 10A per point, isolated relay output module with four Form A (SPST) relays and 4 isolated commons. Operating voltage range is 6-24 VDC / 6-240 VAC. The ...

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, ...

Via a two-wire I2C or SMBus interface, the LTC-1908-8 synchronous step-down dc/dc controller's output voltage is software programmable from 1.3 to 3.5V.