Eltek GenII RC250, Working Instructions

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11.4.1 Communications
Example request to retrieve holding register 100 (set up to contain the raw
value from channel 1) from node address 6:
Slave Address 06
Function 03
Starting Address Hi 00
Starting Address Lo 64
No. of Registers Hi 00
No. of Registers Lo 01
CRC Hi c4
CRC Lo 62
Response from RC250:
Slave Address 06
Function 03
Byte count 02
Raw Value Hi 06
Raw Value Lo 2b (in decimal, 1579)
CRC Hi 4e
CRC Lo 3b
Example request to retrieve holding register 200-201 (set up to contain the
scaled values from channels 1 and 2) from node address 6:
Slave Address
06
Function 03
Starting Address Hi 00
Starting Address Lo c8
No. of Registers Hi 00
No. of Registers Lo 02
Response from RC250:
Slave Address 06
Function 03
Byte count 04 (2 readings, so 4 bytes)
Raw Value Hi 00
Raw Value Lo e6 (in decimal, 230 - meaning 23.0 degrees)
Raw Value Hi 01
Raw Value Lo ed (in decimal, 493 - meaning 49.3 %RH)
CRC Hi ac
CRC Lo d9