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Husdata forum • View topic - Installation of H1-C1 interface for IVT Rego1000 Heatpumps

Installation of H1-C1 interface for IVT Rego1000 Heatpumps

Installation instructions for PC based interfaces

Moderator: Peter

Installation of H1-C1 interface for IVT Rego1000 Heatpumps

Postby Peter » Wed Dec 04, 2013 17:33

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Re: Installation of H1-C1 interface for IVT Rego1000 Heatpum

Postby cpalm » Tue Jan 09, 2018 16:42

Hi!
I'm about to install the H1-C1 but I have a couple of questions that I didn't find an answer to.
1. What are the specific requirements for the rs232 interface wrt signal level (i.e. TTL vs. standard rs232) and hardware flow control (i.e. RTS/CTS and DTR/DSR)? I assume that the H1-C1 does not require any power from the rs232 side(?)
2. Does the H1-C1 provide any "galvanic" isolation between the DTE and the heat pump? Is it advisable to add either a CAN bus or rs232 isolator to prevent damage to the heat pump?
3. Is it possible to switch between rs232 and rs485 on the H1-C1 or are those options physically different?
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Re: Installation of H1-C1 interface for IVT Rego1000 Heatpum

Postby Husdata » Wed Jan 10, 2018 21:15

Hi.
1. It is starndard RS-232 signal level, not TTL. There are no hardware flow control. No power is needed from the computer side.
2. The interface has a DC/DC converter for power and an serial data isolation circuit so there are no electrical connection between Computer and VP. You can add additional isolation if you feel more comfortable. However, several hundreds of these adapters are sold and I have not heard of any problems caused of isolation limits. In 10 years there have been 2 cases of lightning damages. But that took our heatpump, interface, all network equipment, TV:s in the houses and that is hard to fully be covered on.
3. They are physically different.
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Re: Installation of H1-C1 interface for IVT Rego1000 Heatpum

Postby Ahwell » Mon Feb 19, 2018 22:07

Hi there,

any suggestion why my newly bought H1-C1 can not make connection with statlink to IVT Rego1000?

At the bottom of the Statlink window stands "requesting firmware version"

Led in a H1-C1 is blinking irregularily all the time but didn't really see Led behaviour like instruction tells at the first time when power it up.


Any idea what could be the reason for this?
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