Parse a DEX/UCS (EVA-DTS) audit file to extract machine identification, product, and sales records from a vending machine controller.

Steps

1. Retrieve the raw DEX/UCS audit file from the machine (via handheld, DEX cable, or telemetry-delivered EVA-DTS/DDCMP file).
2. Split the file into newline-delimited data segments, each starting with a 2-4 character block identifier (e.g., ID1, PA1, CA1) followed by asterisk-delimited data elements.
3. Parse the ID1 segment for machine identification (serial number, model, build standard, asset number).
4. Parse repeated PA1 segments (with associated PA5/PA7 detail lines) for per-selection product identifier, price, and vend counts since initialization/reset.
5. Parse CA-series segments (CA1, CA2, CA9, CA10, CA16, etc.) for cash-in, cash-to-box, cash-to-tubes, overpay, and fill values.
6. Validate each transaction set's CRC-16 integrity check before trusting the parsed values.