Hi All,

I am using a voltage sensor, link below. When connected to the Monarco the signal voltage gets pulled down. My multimeter reads the signal voltage correctly at 2.64V. But when connected back to the hat it pulls to 1V.

Is this due to the input impedance of the AI? It seems to work ok if I rescale it though.

https://www.geeker.co.nz/sensors/other/voltage-sensor-0-25v.html

Cheers

Mike

@jaroslav_sobota no problem

I found it in the AI specification in the back of the Monarco manual, 4.1.1 page 20.

Cheers

Mike

Hi All,

I have a HMI that uses the “simple logger” feature. I like this feature and it works well. What I’m trying to work out is a more efficient way of selecting the string messages that it logs.

All the strings I have are alarms of some kind. But the alarms come from different places and the string selection block doesn’t really work properly for what I need. I need an alarm to be logged, but any new alarm has to shown/logged without the previous alarm needing to, or being cleared. This is where I find the string selection block fails me. Any more than 2 or 3 string options and things start to break. I’m using the binary inputs.

Do you have any hints?

Cheers

Mike

Hi All,

In the Monarco hat spec , it says the AI voltage mode range can be changed, 0-10V (range 1) or 0-5V (range 2). How is this done?

Cheers

Mike

Hi Jaroslav,

I only had 4 sensors, and I am using the Monarco hat. The sensor cables are all 1.5m long is a star formation.

I have ordered more as I think I had a bad batch. I have issues with the same sensors not working after a power loss.

I will let you know more once I have tried the new sensors.

Cheers

Mike

Hi Jaroslav,

The reason is for battery monitoring. Using an external sensor is fine. Just wondering if the hat had some way of internal measurement.

I will need it to work out battery charge etc.

Cheers

Mike

Hi All,

From within REXYGEN on the Monarco HAT. Can you sample/read the supply voltage to the HAT in anyway?

Cheers

Mike

Hi All,

I'm wondering why I have erratic changes in temperature readings. The readings can jump anywhere from 0.3 to 0.8 of a degree at a time within a second, then back again. I would assume a 1-wire sensor with a metal casing would be a stable thermal mass.

What could cause them to be so unstable? I have the driver set to 200ms execution. Another thing to note is the unstable sensors are around 0-3°C, the stable ones are around 18-20°C

Cheers

Mike

Thanks Jaroslav,

So using a not block would be the preferred way for making it work for cooling.

Cheers

Mike