I want to develop hart protocol using AD5700. I've some queries,
Is it necessary to purchase below mentioned things from HARTComm,
1. HART license?
2. HART special code?
3. HART annual membership?
I recommend reviewing the following HCF webpage:
About Membership Types
Another page of interest might be the CN0267 reference design page. This shows a reference design for a Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface
Still its not clear to me whether we need to pay fees to HCF, if we are using AD5700?
because if we are using AD5700 then no need to purchase specification, licensing from HCF....please suggest because I'm new to HART.
You do not need to be a member of the HCF to use the AD5700 HART modem IC.
So AD5700 and AD5421 will provide a complete HART transmitter?
CN0267 shows a reference design for a complete 4-20mA loop-powered field instrument/transmitter with HART interface. This design uses the ADuCM360 microcontroller, AD5421 loop-powered DAC and AD5700 HART modem. It does not provide the HART stack. A basic code example that demonstrates the functionality and performance of the circuit can be found in the CN-0267 Design Support Package.
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