3Wire RS2MRC · Modbus Register Converter
RS2MRC translates the replacement device’s Modbus registers into the structure already expected by your PLC, SCADA, DCS or BMS.
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The retrofit challenge
A replacement meter or sensor may perform the same function as the obsolete unit, but different register addresses, function codes or scaling can force expensive changes to the master system.
How it works
Key capabilities
Map up to 150 registers from the replacement device to the addresses expected by the master.
Convert between Modbus Function Codes 03H and 04H where required.
Support Modbus write commands using Function Codes 06H and 10H.
Apply addition, subtraction, multiplication or division to convert data values.
Electrical isolation between master and slave RS-485 networks.
DIN-rail or screw mounting with a 12–30VDC power supply.
Typical applications
Replace obsolete meters without changing existing mappings.
Integrate new equipment where DCS changes are restricted.
Preserve existing BMS points, alarms and operating logic.
Retain existing tags, screens and historian mappings.
Map replacement meter data to configured master addresses.
Normalise Modbus data before forwarding it to other systems.
Technical overview
Final suitability depends on the existing and replacement register maps, function codes, data types, byte order and scaling requirements.
Send us the existing and replacement device register maps. We will assess whether RS2MRC can eliminate PLC, SCADA, DCS or BMS modifications.
Malaysia
