Tamper Resistant Recording in a PLC

Compliance with Regulatory and Quality Standards

Regulated industries typically require data recording formats that are resistant to tampering, and available for quality control and auditing at a later date. The E+PLC range utilizes several data management strategies that aid data integrity and file security.

Smart Efficient Data Management

Data files are stored in Eurotherm proprietary tamper resistant file format (.UHH), a better alternative compared to commonly used editable .CSV files. Process data such as operator logins, messages, alarms and other events can also be recorded for traceability.

• Integrated recording functionality easily configurable in the CODESYS IDE
• Data is recorded within a dedicated high availability file system on the E+PLC, reducing dependence upon communications to a Historian on a remote server
• Data archiving is automatically restarted when communications are available
• Tamper resistant backward compatible file format
• ‘Highly Reliable File System’ (HRFS) helps to prevent possible loss or corruption of data due to power interruptions
• Traceability of what happened in the process and when

Recorded data can be retrieved from history files at any time using Eurotherm Review, for analysis or reporting purposes.