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  1. Replies
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    Yes, it is a retrofit. And the boiler is very...

    Yes, it is a retrofit. And the boiler is very old. We are replacing pneumatic system.
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    I do monitor HW supply temp and alarm it. In the...

    I do monitor HW supply temp and alarm it. In the spec I should provide boiler status and flame failure in addition to water temperature monitoring..
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    Thank you all for your replies. I like the idea...

    Thank you all for your replies. I like the idea of using relay. I'm not sure about current switch: it is really not too much current and the switch could be faulty. I will definitely research both...
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    I see that the working range is 90 - 130 . It...

    I see that the working range is 90 - 130 . It doesn't look that this stat would work.
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    Flue gas sensor

    I need to get a boiler status and flame failure alarm. These point are not available from the boiler. My plan is to install flue gas sensor (or switch) and with some logic indicate required values on...
  6. Thread: Oscilloscope

    by eparizher
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    2,166

    By the way, how can you connect one channel scope...

    By the way, how can you connect one channel scope to the com trunk? My understanding that when you connect scope ground to the com wire (that is not ground), you can break the communication because...
  7. Thread: Oscilloscope

    by eparizher
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    2,166

    I like Picoscope 2205. What is your opinion?

    I like Picoscope 2205. What is your opinion?
  8. Thread: Oscilloscope

    by eparizher
    Replies
    17
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    2,166

    What model do you have?

    What model do you have?
  9. Thread: Oscilloscope

    by eparizher
    Replies
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    2,166

    The main purpose for the oscilloscope is to see...

    The main purpose for the oscilloscope is to see what is a signal shape, square or sinus wave, level of noise. All basic tasks that allow me to troubleshoot if I have electrical, hardware failure or...
  10. Thread: Oscilloscope

    by eparizher
    Replies
    17
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    2,166

    Oscilloscope

    I'm planning to get a USB (computer based) oscilloscope for troubleshooting BACnet MS/TP, Modbus and Lon networks.
    Can you advise me what parameters should I select for this task.
    So far I think...
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    Baldor VS1 VFD Modbus Integration

    We have a very fast truck project (Niagara AX) with a lot of integrations.
    Everything is fine except Modbus integration with Baldor VFD drive. I'm getting wrong values or points are in fault.
    Maybe...
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    Thank you, I will take a look.

    Thank you, I will take a look.
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    I don't want to control BO from 50 different...

    I don't want to control BO from 50 different algorithms. I want to create interface that allows to make programming easier, more graphical. After full configuration of the controller the station will...
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    This is just an example. For this particular...

    This is just an example. For this particular object BO it could be about 50 different properties. The same approach applied to other objects with total number of possible properties about 100...
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    My idea to write interface that replace NBPro as...

    My idea to write interface that replace NBPro as much as possible. The reason for this is because if I need to debug a program almost every time I have to do reverse engineering. The same about...
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    Since NBPro is not very user friendly, I try to...

    Since NBPro is not very user friendly, I try to make partial substitution for this tool. Obviously solution with AVs and BVs won't work: too many properties. Also I can't use SPL for anything not...
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    It's exactly what I need. The only thing I still...

    It's exactly what I need. The only thing I still can't write this value from AX. I tried numeric and enum points.
    Getting error
    Property:Invalid Data Type
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    I see some misunderstanding. If I need to read...

    I see some misunderstanding. If I need to read point, I can discover and add point to the database as any type and it doesn't conflict with the controller data type. For example I can add binary...
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    First of all it's not a bag. Whole Automatrix...

    First of all it's not a bag. Whole Automatrix programming based on proprietary properties.
    The point can be discovered as a text in AX if Niagara doesn't know the data type. All other proprietary...
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    My question is how to add writable point to the...

    My question is how to add writable point to the AX to be able to change value from AX. I.e. change input property in the PID object from AI-1 to AI-2.
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    Automatrix proprietary properties

    I try to add AAM proprietary property in Niagara, that has two values in the same property. For example: Analog Output 1 Auto-Stuffing Input object will be AI-1 53041. I can discover this property as...
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    How the communication is established between...

    How the communication is established between controller and the front end? I was under impression that it is a BACnet communication. Am I right or some proprietary property/protocol allows to see the...
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    Thank you. It's what thought. Just curious, why...

    Thank you. It's what thought. Just curious, why make open protocol points private? What stands behind this approach?
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    ALC Integration

    I have to integrate Automated Logic site. There is no problem discovering all controllers (BACnet over IP), but I can't see any points in the controllers. Only system objects and alarms. Also I can...
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    No experience yet, we just plan to have a...

    No experience yet, we just plan to have a training this year and do some small installations.
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