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SETECNA S.r.l. – Via A.Volta, 19/B – 37062 – Dossobuono di Villafranca di Verona – VERONA – P.IVA 03200030231

SETECNA

S.r.l.

Rev. 01

Alessandro

Page: 1 di 10

14/09/2016

23/09/16 17.56

Gateway MODBUS-to-Opentherm MB-OTG

Technical manual

Gateway MODBUS-to-Opentherm

MB-OTG

Technical manual

Revision 1

Rel.

Date

14/09/2016

Содержание MB-OTG

Страница 1: ...ited without an express written authorization SETECNA S r l Via A Volta 19 B 37062 Dossobuono di Villafranca di Verona VERONA P IVA 03200030231 SETECNA ss S r l Rev 01 Alessandro Page 1 di 10 14 09 20...

Страница 2: ...ERONA P IVA 03200030231 SETECNA ss S r l Rev 01 Alessandro Page 2 di 10 14 09 2016 23 09 16 17 56 Gateway MODBUS to Opentherm MB OTG Technical manual Table of Contents 1 Introduction 3 2 Installation...

Страница 3: ...MODbus protocol PLCs Industrial PCs SCADA systems ecc with Boilers sometimes in this manual it is used the annotation Blr that use OpenTherm protocol Every gateway is assigned a MODbus address by a ro...

Страница 4: ...annel is optoisolated from the MODbus side MODbus interface is not optoisolated respect to the Gateway s Power Supply so typically the Master and Gateway are powered by the same Power Supply or from P...

Страница 5: ...ges according to the position assumed by the rotative switch with 16 positions on the device The rotary switch is placed under the plastic case to open it you have to apply a light pressure with a sma...

Страница 6: ...nctions On the Gateway s front panel there are some leds that show the functioning state of the device LED STATUS MEANING BUS green ON Gateway correctly Powered BUS green Blinking Writing Reading data...

Страница 7: ...m protocol Mapping The Gateway maps the exchanged informations some information read other written with the Boiler in as many Register or Coils of the MODbus protocol In particular the Gateway recogni...

Страница 8: ...Temperature C 25 tenth of C 8 DHW Temperature C 26 tenth of C 9 Outside Temperature C 27 tenth of C 10 Return Water Temperature C 28 tenth of C 11 Boiler Exhaust Temperature C 33 tenth of C 12 Boiler...

Страница 9: ...ow temperature setpoint of the Boiler on 55 C set to 550 the holding register number 25 To set the power limit to 70 for the Boiler set to 700 the holding register number 27 Attention To control the t...

Страница 10: ...way receive a valid command from the MODbus In presence of Communication errors first check if the LED BUS turns on if the MODbus communication is frequent the led will be always on on the contrary if...