T3 OEM high speed counter inputs

Is the input signal range programmable using the Signal parameter in the T3-OEM INPUT sheet? It’s initially set to thermistor and the setting seems to change itself back if I change it to 0-5V or 0-10V. I notice that there’s 8.75V DC at the inputs even if I select 0-5V. I’m currently driving it with a 0 to 5V pulse from test equipment and it works but I don’t know what’s recommended.

The final application may have some contact bounce. Does the Filter setting have any effect? If so, what is the acceptable range and what effect can I expect? The input signal is around 10 Hz. maximum

What is the maximum count before the counter rolls over (or does it freeze at the maximum)? I’m planning to sample and record the change in count periodically and need to know how to handle the rollover case. I also tried to reset the count to zero by setting the INxx = 0 in Control Basic, but that did not seem to work. I think it set the value to 0 temporarily, but it seemed to go back to the prior count + 1 when the next pulse arrived.

the input range on T3-OEM can be set to 0–5V or 0–10V. If it keeps switching back it may be a communication issue — try setting it again and make sure it gets saved.

Seeing 8.75V at the input isn’t normal. Please check if all input ports show this, or just one — it could be a wiring or hardware issue.

For pulse counting, IN1–IN8 support low-speed signals, and IN9–IN12 support high-speed pulses up to 100Hz.

The counter maxes out at 4,294,967 and will roll over to 0 after that. Using INxx = 0 in Control Basic won’t reset it — you need to switch the input to manual mode in T3000 and then set it to 0.