Overview

Diagnostic data on time stamping modules and events quality can be accessed on the PLC. The following topics present the data that can be accessed through the PLC interface (Control Expert software).

Time Stamping Diagnostic

Diagnostic data for the BME P58 ••••, BMX ERT 1604 T, and BM• CRA 312 10 modules:

  • TS_DIAGNOSTIC_FLAGS that contains:

    • TIME_VALID: Means that the time is valid and the clock is synchronized.

    • CLOCK_FAILURE: Means that the time source is not currently reliable or that the initial synchronization has not been done since the time stamping module start.

    • CLOCK_NOT_SYNC: Means the time synchronization is lost while the time stamping module is running.

    • BUFF_FULL: Buffer full indication. The bit set to 1 on buffer full detection (bit is cleared when buffer is able to store new events).

  • TS_BUF_FILLED_PCTAGE: Percentage of buffer filled.

    For the BMX ERT 1604 T module, the percentage of buffer filled is calculated by group number whereas in the BME P58 •••• and BM• CRA 312 10 modules it is calculated by event number. For example, in a BMX ERT, for 16 groups of 1 event each: TS_BUF_FILLED_PCTAGE = 16 / 255 * 100 (255 represents the maximum number of groups that can be stored in the BMX ERT buffer).

  • TS_EVENT_STATE: Time stamping events state for internal use.

BMX ERT 1604 T Module in a Modicon M340 Local Drop

Diagnostic data are accessed through PLC language interface or IODDT:

  • PLC language interface: %IWr.m.0.3 to %IWr.m.0.5 (where r is the rack number, and m is the BMX ERT 1604 T position in the rack).

    For details on implicit input parameters, refer to chapter Language Objects for Channels in Modicon X80, BMXERT0604T Time Stamp Module, User Guide.

  • T_ERT_TS_MOD IODDT

    This IODDT is mapped on BMX ERT 1604 T channel 0: %CHr.m.0 (where r is the rack number, and m is the BMX ERT 1604 T position in the rack).

    For details on BMX ERT 1604 T IODDTs, refer to chapter IODDTs in Modicon X80, BMXERT0604T Time Stamp Module, User Guide.

BMX ERT 1604 T Module in a Modicon X80 Ethernet RIO Drop

Diagnostic data are accessed through T_M_DIS_ERT.ERT_SYNC PLC device DDT.

For details on those device DDTs, refer to chapter Device DDT Names for Quantum EIO Remote I/O Adapter Modules in Quantum EIO, Remote I/O Modules, Installation and Configuration Guide.

BMx CRA 312 10 Module Diagnostic in Control Expert

Diagnostic data are accessed through T_M_DROP_EXT_IN PLC device DDTs.

For details on those device DDTs, refer to chapter Device DDT Names for Quantum EIO Remote I/O Adapter Modules in Quantum EIO, Remote I/O Modules, Installation and Configuration Guide.

BME P58 xxxx CPU Diagnostic in Control Expert

Diagnostic data are accessed through %SW67, %SW73, and %SW74 system words.

For details on those system words, refer to EcoStruxure™ Control Expert, System Bits and Words, Reference Manual.