DOCA0193EN-00

Event History

General Description

The event history registers describe the last 100 encountered events. The event history format corresponds to a series of 100 records. Each record is composed of five registers describing one event.

A read request of 5x(n) registers is necessary to read the last n event records, where 5 is the number of registers for each event record.

For example, a read request of 5x3 = 15 registers is necessary to read the last three event records of the event history:

  • The first five registers describe the first event record (most recent event).

  • The next five registers describe the second event record.

  • The last five registers describe the third event record.

There are two event histories, 1 per IO module.

IO Module

Address

Register

Description

IO 1

0x39A7–0x39AB

14760–14764

Event record 1 (most recent event record)

0x39AC–0x39B0

14765–14769

Event record 2

0x39A7+5x(n-1)–0x39AB+5x(n-1)

14760+5x(n-1)–14764+5x(n-1)

Event record n

0x3B96–0x3B9A

15255–15259

Event record 100

IO 2

0x455F–0x4563

17760–17764

Event record 1 (most recent event record)

0x4564–0x4568

17765–17769

Event record 2

0x455F+5x(n-1)–0x4563+5x(n-1)

17760+5x(n-1)–17764+5x(n-1)

Event record n

0x474E–0x4752

18255–18259

Event record 100

Event Record

A block request of five registers is necessary to read an event record. The order and the description of the event record registers of IO 2 are the same as those of IO 1:

Event Record 1 (Most Recent Event Record)

Register

Address

RW

Type

Description

0x39A7

14760

R

INT16U

Event code of IO 1 and IO 2 (refer to IO Module Events and Alarms)

0x39A8– 0x39AA

14761– 14763

R

ULP DATE

Date and time of the event (refer to Data Type: ULP DATE)

0x39AB

14764

R

INT16U

Event type
MSB = 0 (reserved)
Event occurrence: LSB = 1
Event completion: LSB = 2

Alarm Definition

Alarms are specific events that need to be reset.

The reset mode of an alarm can be:

  • automatic: the alarm is reset automatically when the alarm is no more active.

  • manual: the alarm is reset manually with the Test/Reset pushbutton located on the front face of the IO module and when the alarm is no more active.

  • remote: the alarm is reset remotely with the Reset command sent via the communication and when the alarm is no more active.

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