Time Stamping

Overview

BMXNOR0200H module provides two ways for time stamping of events:

Time stamping done at source in the CPU (requires PLC programming).
Time stamping done in the RTU module (no PLC programming required).

NOTE: Improved time stamping resolution can be obtained when performing the time stamping in the PLC CPU. Time stamping resolution is basically depending on the CPU scan time and I/O modules type.

Supported Time Formats

In IEC 101 the Time Format for events time stamping may be set to one of the following options:

CP56: 56-bit (default)
CP24: 24-bit

The 56-bit Time Format is an absolute time format, whereas the 24-bit Time Format is an incremental time format that only specifies minutes and milliseconds. The IEC 104 protocol uses 56-bit time format.