I googled hard and came up with no result for Serial/Modbus converter to HART but there are millions of hits for HART to Modbus.Why ?
My application has a Modbus out from a field device and I want to hook it up to a HART bus

moduser

 

Check out the Modbus Organization's Modbus Device Directory (http://www.modbus.org/devices.php). There are several Modbus-Hart gateways listed on the site from several vendors. Prosoft might be a good place to start...

 

Here's an old thread with some info regarding modbus->hart conversion...

http://www.control.com/thread/1026195086