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no communication from modbus secondary

I am using a 1732 RTU as the remote unit and a 1739 for the main tied to the computer  thru comport 1
when running outlook it get a error "no communication from modbus secondary"
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Message 1 of 3
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Hi desalvo,
 
I need some additional information on your setup.  When you are trying to establish communications with your modbus device, what Lookout object are you using? 
 
A good getting started guide for establishing communications to Modbus devices through Lookout is located here:

[broken link removed]

 
 
Regards,
 
Matt S.
Application Engineering
National Instruments
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Message 2 of 3
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Also review the NI document for the 1700 series of Zetron Controllers, very simular.
 

[broken link removed]

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