> For the complete documentation index, see [llms.txt](https://docs.ardexa.com/knowledge/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ardexa.com/knowledge/configure/plugins/solar-inverter-plugins/solarcheck-strings.md).

# SolarCheck Strings

### Purpose

The purpose of this project is to collect data from Phoenix Contact SOLARCHECK string monitors.

### Usage

The purpose of this project is to collect data from Phoenix Contact SOLARCHECK string monitors via Modbus. The plugin uses the Modbus TCP Specification. Data will be collected to the `strings` table, and will be run every 5 minutes, by default. This plugin relies on the `Modbus Ardexa` plugin. There are 2 configurations; 1 for collecting data from 3 channels, and the other from 4 channels. The following data will be collected for each channel:

```
Variable                Units
=============================
Status
AC Current 1            A
AC Current 2            A
AC Current 3            A
AC Current 4            A
AC Current 5            A
AC Current 6            A
AC Current 7            A
AC Current 8            A
DC Voltage              V   
Temperature            °C  
```

### Arguments

Arguments are as follows:

* `endpoint`. This is either an IP address like `192.168.1.15`
* `bus_addresses`. The bus address of the string(s)
* `--port`. This is an optional parameter used in an Ethernet gateway, and is the TCP port used for the gateway. Default is `502`
* `--attempts`. This is an optional parameter, and determines how many times to times to attempt to read an inverter value. Default is `1`
* `--delay`. This is the delay in seconds between inverter send and receive commands, AND if `attempts` > 1. Fractions like `0.3` can be used. Default is `0.05`