I’m sooo sorry Raymond for mixing your name up please forgive me it’s been a long day.... I did think it was the camera at fault so I purchased another 2 from different sellers and the result is the same

 

I’m sooo sorry Raymond for mixing your name up please forgive me it’s been a long day.... I did think it was the camera at fault so I purchased another 2 from different sellers and the result is the same

Arghhh I wonder if you are purchasing OEM parts without external triggering. Can you not get any information from any of the three vendors that you have now used??

 

One other thought, and I have asked this before....set up with the default continuous mode and no opto or anything else connected, do you see ~24 volts on the external trigger pin on the M12?

and...does the camera give you images like that?

Edited to add: What I am thinking is that the external trigger should be an open collector. If ~24v were present on the trigger pin on the M12, it would suggest that. I thought I had asked about it in an earlier post. If it works like that, then we need to raise or lower (depending on the mode selected) the voltage that is on the pin.

 

Hi

Excuse me for jumping in...but have you verified that VCC is greater than 20vdc?
The input voltage to the opto can be a lower voltage, but the opto output connected to the camera trigger has to be greater than 20vdc to turn on and switch to less than 2vdc to turn off. Also, check that the input voltage ground is referenced to the same ground as VCC.

BTW-
The trigger is not open collector because then it would be an output. Its interesting that this information is strangely omitted from the technical info.

Circuit should look like this:



eT

 

Hi

Excuse me for jumping in...but have you verified that VCC is greater than 20vdc?
The input voltage to the opto can be a lower voltage, but the opto output connected to the camera trigger has to be greater than 20vdc to turn on and switch to less than 2vdc to turn off. Also, check that the input voltage ground is referenced to the same ground as VCC.

BTW-
The trigger is not open collector because then it would be an output. Its interesting that this information is strangely omitted from the technical info.

Circuit should look like this:

View attachment 170267

eT

I certainly have no problem with you jumping in - the more eyes, the better.

That being said, the circuit that you presented in the post above, was presented in post #1 and post #2 and post#17.

The questions that you have asked have also been asked previously (e.g post #2). But, there is nothing wrong with starting fresh and having the OP explicitly checking the voltages on M12 and reporting them.

While I understand your point about the trigger and open collector, I disagree when you say "it can't". As you note, the documentation is not particularly clear (or if it is, the clear approach does not work). If the trigger pin on the M12 is found to have a voltage relative to ground (meter red to blue on the M12), I can see that the approach needs to be changed. Thus, in my thinking, it should be checked (again, this was mentioned previously when I asked if red was at 0v). Also, the diagram that I enlarged and posted refers only to an external trigger. As we can both read, it also mentions "input" which I would also reference, apparently, to the role of the external trigger. But that approach did not work. They may have chosen poor or misleading wording, but perhaps I am reaching. Since the OP has had no luck trying the straightforward approach, maybe some reaching is called for - maybe not.

So, yeah recheck what has already been discussed, but do you see anything that we have missed beyond that??

 

I certainly have no problem with you jumping in - the more eyes, the better.

That being said, the circuit that you presented in the post above, was presented in post #1 and post #2 and post#17.

The questions that you have asked have also been asked previously (e.g post #2). But, there is nothing wrong with starting fresh and having the OP explicitly checking the voltages on M12 and reporting them.

While I understand your point about the trigger and open collector, I disagree when you say "it can't". As you note, the documentation is not particularly clear (or if it is, the clear approach does not work). If the trigger pin on the M12 is found to have a voltage relative to ground (meter red to blue on the M12), I can see that the approach needs to be changed. Thus, in my thinking, it should be checked (again, this was mentioned previously when I asked if red was at 0v). Also, the diagram that I enlarged and posted refers only to an external trigger. As we can both read, it also mentions "input" which I would also would reference, apparently, to the role of the external trigger. But that approach did not work. They may have chosen poor or misleading wording, but perhaps I am reaching. Since the OP has had no luck trying the straightforward approach, maybe some reaching is called for - maybe not.

So, yeah recheck what has already been discussed, but do you see anything that we have missed beyond that??

Hi

I didn't see where anyone asked if VCC was actually greater then 20v and it wasn't specified on the circuits.
I also didn't see where the input ground reference was discussed. and I'm sorry but I still don't see how the trigger input could be open collector. It might be an opto input, in which case it would be a diode, then using the external opto would be unnecessary. So I guess I disagree with your disagreement.. . But your right..the documentation is kind sketchy...

Ayway...I'll go away know...I just thought I'd mention some things to check.

eT

 

Hi

I didn't see where anyone asked if VCC was actually greater then 20v and it wasn't specified on the circuits.
I also didn't see where the input ground reference was discussed. and I'm sorry but I still don't see how the trigger input could be open collector. It might be an opto input, in which case it would be a photo diode, then using the external opto would be unnecessary. So I guess I disagree with your disagreement.. . But your right..the documentation is kind sketchy...

Ayway...I'll go away know...I just thought I'd mention some things to check.

eT

Jump in or jump out, but if you are going away because you are angry, that is entirely on you. If you are going away because you don't have anything else to add, I understand. We are either missing something, or the camera does not have that capability and it is frustrating.

I asked what the voltages were. No I did not reiterate the values which are prominently displayed on the diagram, you are right, sorry, thanks for pointing that out.

 

Hello,

Not angry....I just don't have anything more to add...

Good luck..

eT

 

Hello,

Not angry....I just don't have anything more to add...

Good luck..

eT

Yeah, this is a tough one and if you think of something, please bring it up. Hopefully the OP comes back and says everything works fine now and it was some silly mistake, that we have all made at one time or another.

 

@Glenn Lorimer

Hi Glenn, any update on this? Curious as to how it turned out.

 

Not as of yet I’m still puzzled as to how it’s works

 

Completely independent of the external trigger, can you get the camera working with the software? That is, does the software find the camera?

 

Yes I can connect to the camera and run it in continuous mode but the that’s to slow takes images every second I need it to take images every 0.3 seconds. If I set it to Ethernet I can run a test and as fast as I can click the test button it’ll take images so I may have take a look at doing it that way

 

Yes I can connect to the camera and run it in continuous mode but the that’s to slow takes images every second I need it to take images every 0.3 seconds. If I set it to Ethernet I can run a test and as fast as I can click the test button it’ll take images so I may have take a look at doing it that way

Well, that's good.

What about the voltages on the M12 connector with no external triggers.
What do you see on brown and red, assuming blue as GND?

 

Well, that's good.

What about the voltages on the M12 connector with no external triggers.
What do you see on brown and red, assuming blue as GND?

I get 24vDc across brown and blue I’ve not tested across the red your correct in think blue is GND do you think I should get something?

 

I get 24vDc across brown and blue I’ve not tested across the red your correct in think blue is GND do you think I should get something?

I asked because I don't know why you have not been able to get an external trigger. If you do see something red to blue, it would definitely change my thinking and it is easy to check.

 

I’ll check it first thing tomorrow I’d like to get to the bottom of this as it’s really pickled my brain.... I may use a PNP and NPN sensor output just out of shear desperation to try fire the trigger

 

I’ll check it first thing tomorrow I’d like to get to the bottom of this as it’s really pickled my brain.... I may use a PNP and NPN sensor output just out of shear desperation to try fire the trigger

Yeah, it frustrates me and I don't even have one!

 

Hi all just a quick update i have the image sensor triggering remotely at last ive not been on it for a few wks due to other projects but it turns out the brand new M12 8pin lead was faulty there was no continuity between pin 8 and the red wire the other end, after replacing the cable it works a dream...... thank guys for all your help its much appreciated

 

Oh wow - glad you got it working and thanks for letting us know.