All Questions
7
questions
1
vote
4
answers
1k
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Microcontroller 24V digital output
For a microcontroller generating a 20mA industrial digital output. What kind of setup is best?
I'm considering:
Microcontroller pin driving a low current N-FET to pull a 24V signal to ground. But ...
- 25
0
votes
1
answer
546
views
Produce and amplify analog signal with microcontroller (For PLC)
Overview
I need to create an analog voltage of 0V-10V for the PLC with a microcontroller with operating voltage 5V.
Approach
I've been doing this research since last week. I'll share the results of ...
- 93
1
vote
2
answers
2k
views
Electrical isolation in PLC output cards
Every output card spec sheet I read says something about electrical isolation. One I read recently said "Isolated 1500VDC channel to channel". What does isolation mean and what advantages do isolated ...
- 137
1
vote
2
answers
3k
views
Matching sensor output with PLC input
I am trying to add a height captor for a line of my production where I work. I found this Banner captor (QS30LLPQ) and it has 2 bipolar discrete outputs (PNP and NPN). Now, I am trying to decide which ...
0
votes
2
answers
273
views
Is it possible to accept analog input, digital input and provide digital output and analog out on a single MCU Pin?
This is based on my previous question here:
How to accept switched GND or switched Positive on a 3v3 MCU input
But I want to go further so I think it is best to ask a new question.
My device is much ...
- 896
0
votes
2
answers
1k
views
Updating outputs in PLCs
For all PLC manufacturers, is Mass I/O copying the choice for updating outputs?
I found that there is another possible method: the continuous I/O updating.
Can anyone tell me what is the reason for ...
- 243
3
votes
2
answers
3k
views
Solenoid stays on when output turned off
I have a power supply with 12V running into a the common on my PLC. Output 0 on the PLC is wired into a solenoid. The negative on the solenoid runs into the ground on the power supply completing the ...
- 41