Data Format

The SSI sensor data is produced in the

I.SSIxx.Data

tag.

If the type of SSI sensor is Binary, the data format is always Binary. If the type of SSI sensor is Gray code, the displayed data format is always converted from Gray to Binary.

Some SSI sensor has non-position trailing bits on the data returned. This can be truncated by configuring the number of Trailing Bits in Module Properties → SSI – Conversion. This is important to achieve the correct direction and window comparison result.

If the trailing bits has important information such as status information, the

I.SSIxx.RawData

tag can be used to readback this information. The RawData contains the data received from the SSI sensor without any conversion or truncation. The RawData size matches the word length.