Rev Pi webpage not showing the current data of pin
Rev Pi webpage not showing the current data of pin
im new to revpi. could you please tell me how to update/see the changes of data on the pins on the browser. Thanks
Re: Rev Pi webpage not showing the current data of pin
Hi, there is no built-in functionality unfortunately. But there are much possibilities. Node-Red is a good starting point. There is also PROCON-WEB-IOT for example and Codesys is also a possibility.
Re: Rev Pi webpage not showing the current data of pin
Thanks for your reply
-Does that mean that the webpage of revpi is only to set data on the pins of the revpi and not to visualise the changed data by refreshing the browser?
-The AIO input drops slowly when the input is suddenly turned off to 0 volts. The data change isn't sudden. Can something be done to fix this?
Thanks.
-Does that mean that the webpage of revpi is only to set data on the pins of the revpi and not to visualise the changed data by refreshing the browser?
-The AIO input drops slowly when the input is suddenly turned off to 0 volts. The data change isn't sudden. Can something be done to fix this?
Thanks.
Re: Rev Pi webpage not showing the current data of pin
- Yes, as far as I know, the webpage of the RevPi (also called RevPi status panel or webstatus panel, see here) is only for configuration of the modules such as a DIO or AIO-Modul (PiCtory), to activate/deaktivate certain Services, and so on, but not to display input signals. Except for the tab Status, where you should see the real time CPU Temperature. For a quick look at the current status of input or output pins, I use piTest, which you can use for writing on output pins, too.
- I just tried to reproduce your error. With my AIO module, the voltage drops instantanly when I disconect the voltage input (pins 24 and 28). What do you mean by "slowly"? How do you meassure your voltage drop? Via piTest? Do you have a capacitor connected or can there be any other external elctrical reasons for the slow volateg drop that you observe in your system? Maybe you'd also like to have a look here.
Re: Rev Pi webpage not showing the current data of pin
Thanks for your reply. Appreciate it..
- Got it
- So my setup was simple. I had a voltage source connected across 2 analog pins of the revpi. Pin 28 and 24 to be specific [IN1] according to https://revolution.kunbus.com/tutorials ... revpi-aio/
There was no other capacitor or resistor in the circuit. The multiplier and divisor value was 1 and offset was 0. That means the voltage across the pins was displayed directly when I tried to read using ./piTest -r InputValue_1
So at a range of 0- 5 volts, it displayed the volage accurately. But when I suddenly switch off the voltage source, its supposed to drop to 0V, but the voltage kind of drops slowly at a rate of around 1volt/sec approximately
- Got it
- So my setup was simple. I had a voltage source connected across 2 analog pins of the revpi. Pin 28 and 24 to be specific [IN1] according to https://revolution.kunbus.com/tutorials ... revpi-aio/
There was no other capacitor or resistor in the circuit. The multiplier and divisor value was 1 and offset was 0. That means the voltage across the pins was displayed directly when I tried to read using ./piTest -r InputValue_1
So at a range of 0- 5 volts, it displayed the volage accurately. But when I suddenly switch off the voltage source, its supposed to drop to 0V, but the voltage kind of drops slowly at a rate of around 1volt/sec approximately
Re: Rev Pi webpage not showing the current data of pin
Dear Tomin,
The fact that the voltage is not immediately 0 is due to your power supply. The power supply has internal capacitors at the output.
To test, disconnect the 14-pole connector from the AIO and the voltage will immediately drop to 0.
The fact that the voltage is not immediately 0 is due to your power supply. The power supply has internal capacitors at the output.
To test, disconnect the 14-pole connector from the AIO and the voltage will immediately drop to 0.
Re: Rev Pi webpage not showing the current data of pin
Oh I see. Thanks for your reply.
Re: Rev Pi webpage not showing the current data of pin
Also, how to change parameters such as InputVoltage range, mulitplier etc for the AIO .I tried setting via piTest and I am able to read the set value too such as ADC rate. But it does not get updated accordingly. It works when all this is set via the browser (PICTORY) and i do a 'RESET DRIVER' . Am i missing something while setting these parameters via script ?
