Ask the I/O Experts Index

Ask the I/O Experts Question Index

Does Acromag Offer Remote I/O that Performs at 10mSec Max Speed & Minimizes Delays or Loss of Data?
Does Acromag Offer Product Protection from Corrosive Atmospheres
How Would I Characterize or Limit Process Signals?
Are there any alarm features in your Ethernet I/O? We have remote Robots with E-stops to monitor and local shut down is preferred if an instrument or system failure is detected.
What's the best choice for a 4-20mA isolator to do both sinking output loop powered (2 wire) and sourced output connections?
What are the main reasons for using a splitter?
We have a large industrial campus with multiple gated entryways. We would like to remotely control the gates from the guard station. We do have a wireless Ethernet network available. Do you have a way to remotely control many 3 way switches to Open, Close & Stop?
We have pressure transmitters with 4–20mA outputs (2 wire) and Acromag's 631T isolator with 24V DC Excitation output to power the pressure transmitter. We have a new project using a pressure transducer that requires an excitation supply and these are 4 wire devices. Will the 631T work with these transducers?
We will be installing and data logging 12 flowmeters around our plant. Some with 4-20mA outputs and others with pulsed outputs. Is there a way to totalize the flows remotely over Ethernet so our DCS can simply read back the totalized flows periodically?
In your product manuals, the wiring diagrams show to connect earth ground for best practice. What will happen if we do not connect earth ground?
I’m using the XT1221 to measure differential voltage signals with a range of 0-5VDC. I’ve set up my PLC scaling such that a Modbus count of 0 = 0V, and a Modbus count of 30000 = 5VDC. Our technician recently installed new XT1221 units, and now the values we are seeing in our PLC are about 2/3 of the actual signal values. What could be causing this?