==== Apogee SP-522 driver ====

=== Description ===

The SP-522-SS is an upward-looking thermopile pyranometer with a digital signal using Modbus RTU protocol over RS-232 or RS-485. The sensor incorporates a blackbody thermopile detector and acrylic diffuser with a rugged, self-cleaning sensor housing design, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers.
   

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==== Settings (center panel) ====

**Name** - The name is up to the user. Our suggestion is to choose a naming convention that makes the viewing the device list intuitive. Such as referring to the sensor and/or application. Keep the name short as it will be combined with the register name to create the default "Field" name (if added to "Fields")

**Active Check box** - Check this box and "Save changes" to run the driver. The driver program can be suspended by unchecking the box and clicking on "Save changes". 

**User Notes** - This space can be used to store information specific to the device and your application, such as: location, wiring, scaling, etc.

**eze System Notes** - In this space we provide: wiring instructions, product image, product details. 

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**Modbus address** - Enter the unique Modbus address (device ID) of the sensor.   

**Heater ON below (C)** - Enter the temperature below which the sensors heater will turn on. 

**Sensor temp (C) field number** - Use the drop-down menu to select the temperature Field used by the sensor.   

**Dewpoint (C) field number** - Use the drop-down menu to select the Dewpoint Field used by the sensor.   

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==== Status & Registers (right panel) ====


=== Device Status ===

**Driver info** - Typically this is the name from the program file

**Driver updated/version** - Date loaded or updated and the version of the driver

**Battery & Signal** - Signal indicates the progress through the script. If driver fails to operate, signal number indicates progress 

**Driver status** - Color and text of status bubbles give a quick visual reference of Communication, Operation, and Application

**Communication** - Com count indicates number of successful and unsuccessful data packets received

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=== Available registers ===

  - **Solar Radiation** - Radiation value in Watts per square meter.  
  - **Raw millivolt** - Raw electrical output signal in millivolts.  
  - **Sensor temperature (external)** - External sensor reading used by sensor 
  - **Heater** - State of heater (on/off)
  - **Dewpoint (external)** - External sensor reading used by sensor (selected in driver config)