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eurotherm 2408 and computer communications

Dear Sir,

I am trying to connect Eurotherm 2408 to the computer so I added a module (RS422 comms and configured it) to it and connected to a computer via USB 2.0 To RS-485 Converter. I have followed the wiring diagram in the manual but everytime I try to connect the device via Itools, it says "failed to change device into factory comms mode). Please advise. Thanks.

Roland Barbosa
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