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PRISM MQTT
User's manual
rel. 2.0 - rev. 20220105

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Summary of Contents for SILLA PRISM MQTT

  • Page 1 PRISM MQTT User's manual rel. 2.0 - rev. 20220105...
  • Page 3 Silla reserves the right to change the information provided in the documentation. The contents of the documentation are not to result in any claims by the...
  • Page 4: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS USER MQTT Setup - Connecting to Prism Setup - Login Setup - MQTT settings MQTT Topic - Introduction <topic_base> <port_number> Status Topics hello <port_number>/state <port_number>/volt <port_number>/w <port_number>/amp <port_number>/pilot <port_number>/user_amp <port_number>/session_time <port_number>/wh <port_number>/wh_total <port_number>/error <port_number>/mode <port_number>/input/touch energy_data/power_grid Command Topics...
  • Page 5 Topic in presence of Powerwall energy_data/power_solar energy_data/power_house Warning prism Solar Duo You will find some references to Prism Solar Duo. Please be aware that the product is no longer available. Settings are not subjected to variations. Prism rel. 2.0 - MQTT...
  • Page 6: User Mqtt

    USER MQTT MQTT is a standard messaging protocol designed for situations where low impact is required and where bandwidth is limited. Because of these characteristics, it is a widely used communication protocol in IoT and home automation devices. Prism operates as an MQTT client, posting and receiving messages through the broker configured by the user.
  • Page 7 Setup - MQTT settings Once you are logged in, go to Prism -> Settings The " MQTT connection" section will be displayed, showing the following settings: Enabled: enables/disables the MQTT connection. ● Once enabled, the following options will be shown. ●...
  • Page 8: Mqtt Topic - Introduction

    MQTT Topic - Introduction In the manual, values between two angle brackets, e.g., "<topic_base>," indicate variables that should be specified according to the context. Variable values are described below. <topic_base> It corresponds to the value specified in the MQTT settings, as described in section Configuration - MQTT Settings.
  • Page 9: Status Topics

    Status Topics In these topics, there are messages regarding the status of Prism. Messages are sent only when the specified value changes, so in case of constant values no further messages will be received. hello In this topic, a message is posted on the start of the communication containing information about the version of Prism Example: <topic_base>/hello “Cartender-Prism 2.0c (evsemd v1.1.1)”...
  • Page 10: Port_Number>/Pilot

    <port_number>/pilot Reports the current delivered to the car, in amperes [A]. Example: <topic_base>/1/pilot 8 <port_number>/user_amp Reports the current set by the user, in amperes [A]. Example: <topic_base>/1/user_amp 8 <port_number>/session_time Reports the duration of the ongoing charging session, in seconds [s]. Example: <topic_base>/1/session_time 3600 <port_number>/wh Reports the energy supplied by the charging port during the ongoing session, in watt-hours [Wh].
  • Page 11: Port_Number>/Input/Touch

    <port_number>/input/touch This topic reports the events related to the output touch button, expressed as a sequence of the button press durations. If the button is pressed several times consecutively, it is recognized as a touch sequence event. The sequence ends when the button is not pressed for at least 0.8 seconds or the button is pressed consecutively more than 30 times.
  • Page 12: Command Topics

    Command Topics This section lists the command topics. by posting on these topics you can control some of the parameters of the charging process. <port_number>/command/set_mode Set the Prism mode to: Solar 2. Normal 3. Pause Example: <topic_base>/1/command/set_mode 2 Port 1 is set to "Normal" mode. <port_number>/command/set_current_user It sets the maximum charging current specified by the user, in amperes [A].
  • Page 13: Command Response Topics

    Command Response Topics A message is posted in these topics whenever a command is executed. commandresult/<command>/success A message is sent to this topic when <command> is executed correctly. Example: command is sent <topic_base>/1/command/set_current_limit 9.2 if it is executed correctly, the message is published <topic_base>/commandresult/set_current_limit/success commandresult/<command>/error A message is sent to this topic when <command>...
  • Page 14 [W]. Example: <topic_base>/1/power_solar 3000 energy_data/power_house This value is only available if Powerwall is enabled. For more information, see the Prism user manual, available at https://silla.industries/en/docs/. Reports the power currently consumed by the household system, in watts [W]. Example: <topic_base>/1/power_solar 3000 Prism rel.
  • Page 16 Via della Meccanica, 2/A 35127 Padova - PD Italia https://silla.industries support@silla.industries +39 049 2325440...

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