How to Set Digital I/O State of Watlow EZ-Zone RM to "ON" in LabVIEW?

[j816y]

I have a Watlow EZ-Zone RM controller and here is the driver: 

http://www.watlow.com/downloads/en/software/Watlow%20EZ-ZONE(R)%20LabView%20Driver%20a.zip

I have 16 Digital I/O connected to SSR and I need to use them to trigger the SSR.

so here is my question

How to Set Digital I/O State of Watlow EZ-Zone RM to "ON" in LabVIEW?

Which parameter ID that I should use to change the state from Off (62) to On (63)?

First I thought I can write "63" to parameter ID "6007", and it does not work since it is a read only parameter. Is it supposed to be a way that I can just simple change it from Off to On?

Thank you for answering my question.

[j816y]

I can read the state of the output but no able to write it.

[j816y]

Please help, I think it might not be that simple since I cannot set it to "on" directly from EZ-ZONE configuration neither. Please, anyone used the Watlow EZ-Zone RM before (With LabVIEW driver)?

[Aldo_A]

Hi j816y,

Double check your COM port to see if it belongs to the EZ-ZONE RM controller, in addition, if you can't get it to work with the EZ-ZONE Configuration, then it might be a hardware problem. I had trouble finding the user manual which contains the states, can you provide a link to the document? Thanks!

[j816y]

Thanks, I just figure it out yesterday and I will post the answer later today, thanks again.

[TWatlow · Accepted solution]

The DIO cannot be set directly. First a Variable block will need to be set to digital and tied to the DIO block. Then by changing the digital state can be changed from on (63) to off (62).

[j816y]

Thank you, I just found out yesterday. Thanks again

[mcnearymw]

so how exactly did you set the variable block?

[Zachmx]

Hi mcnearymw,

I might need some clarification on terminology as I don't see anything mentioned in the LabVIEW code about a variable block. Could you give me a more detailed description of how you are trying to implement this setup?

[chulew]

I see this is an old thread but I'm confused about using a Watlow RM variable to enable/disable output. I can read/write temperature and setpoints ok. Any guidance would be appreciated.