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NetBotz Rack Monitor 250 Modbus Register Map Detail for MM_SENSOR_1_DISCRETE_STATE register/data point

Issue

The NetBotz 250 Modbus Register Map references this FAQ article to further explain the possible responses/ENUM for the following register/data point:
  • MM_SENSOR_1_DISCRETE_STATE

Product Line
  • NetBotz
    • ‚ÄčNetBotz Rack Monitor 250


Environment
  • All serial numbers
  • All firmware versions
  • Modbus TCP/serial users

Cause

This article will provide additional information and detail for Modbus users.


Resolution

Within the NetBotz 250 Register Map, discrete (state) sensors refer back to MM_SENSOR_1_DISCRETE_STATE as needed to provide what possible responses may exist. Modbus responses of 1 and 0 may refer to different discrete sensor states depending on sensor type. The below information clarifies what is mentioned in the NetBotz 250 Register Map document.

MM_SENSOR_1_DISCRETE_STATE 

The following responses are supported for MM_SENSOR_1_DISCRETE_STATE:
  • 0 = Open (Low)
  • 1 = Closed (High)
  • 2 = Not Connected

The above possible responses will also be used by the following supported sensor types for MM_SENSOR_1_DISCRETE_STATE:
  • Smoke (NBES0307) - 0 = No Smoke, 1 = Smoke Detected, 2 = Not Connected
  • Fluid (NBES0301) - 0 = No fluid, 1 = Fluid Fetected, 2 = Not Connected
  • Vibration (NBES0306) - 0 = No Vibration, 1 = Vibration Detected, 2 = Not Connected
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