Elseta IOMOD HT User Manual - Page 7

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Elseta IOMOD HT User Manual
Supported MODBUS functions
01 (0x01) Read Coils Status
Reads status of relays (Off or On). IOMOD HT has 2 relays on addresses 6 and 7 (Only for IOMOD
HT Advanced).
03 (0x03) Read Holding Registers
Reads current configuration of relays. Address 2 – Active Mode for 1st relay ( 0 – disabled, 1 - humidity or 2 -
temperature); Address 3 – Lower Active value (minimal value for relays to turn on) for 1st relay; Address 4 – Upper
Active value (maximum value for relays to keep turned on. If parameter reaches threshold bigger than this value, relay
is turned off) for 1st relay. Address 5 – Active Mode for 2nd relay (humidity or temperature); Address 6 – Lower Active
value (minimal value for relays to turn on) for 2nd relay; Address 7 – Upper Active value (maximum value for relays to
keep turned on. If parameter reaches threshold bigger than this value, relay is turned off) for 2nd relay.
04 (0x04) Read Input Registers
Reads current Humidity and Temperature status. Address 0 – Humidity; Value is multiplied by 10 to show one decimal
place. For example: 23.3 °C will be shown as 233; 50.0 % will be shown as 500 in the Registers.
05 (0x05) Write Single Coil
(Only for IOMOD HT Advanced). Sets single relay On or Off. 1 Relay address – 6th register; 2 relay – 7th register.
06 (0x06) Preset Single Register
Sets single configuration (Only for IOMOD HT Advanced). Address 2 – Active Mode for 1 relay: 0- disabled; 1 - humidity
or 2 - temperature; Address 3 – Lower Active value (minimal value for relays to turn on) for 1 relay; Address 4 – Upper
Active value (maximum value for relays to keep turned on. If parameter reaches threshold bigger than this value, relay
is turned off) for 1 relay. Integer; Address 5 – Active Mode for 2 relay: 0- disabled; 1 - humidity or 2 - temperature;
Address 6 – Lower Active value (minimal value for relays to turn on) for 2 relay; Address 7 – Upper Active value
(maximum value for relays to keep turned on. If parameter reaches threshold bigger than this value, relay is turned
off) for 2 relay.