Overview

The Hot Standby FDR Sync object presents the instances, attributes and services described below.

Class ID

406 (hex), 1030 (decimal)

Instance IDs

The Hot Standby FDR Sync object presents two instances:

  • 0: class

  • 1: instance

Attributes

Hot Standby FDR Sync object attributes are associated with each instance, as follows:

Instance ID = 0 (class attributes):

Attribute ID

Description

GET

SET

01

Revision

X

—

02

Maximum Instance

X

—

X = supported

— = not supported

Instance ID = 1 (instance attributes):

Attribute ID

Description

Type

GET

SET

Value

hex

dec

01

01

Status

UDINT

X

—

  • bit 0: 0 = service not running; 1 = service is running

  • bit 1:0 = service has no detected error; 1 = service has detected an error

02

02

Checksum of the parameter (.prm) files

UDINT

X

—

X = supported

— = not supported

Services

The Hot Standby FDR Sync object performs the following services upon the listed object types:

Service ID

Description

Class

Instance

Notes

hex

dec

01

01

Get_Attributes_All

X

X

Returns:

  • all class attributes (instance = 0)

  • instance attributes 1 to 7 (instance = 1)

07

07

Stop

—

X

In Standby state, start the synchronization service. In Primary state, no action.

0E

14

Get_Attribute_Single

X

X

Returns the value of the specified attribute.

4B

75

Copy_Primary_to_Standby

X

X

Applicable only if the device is in Standby state. Otherwise, an error is detected.

4C

76

Copy_Standby_to_Primary

X

X

Applicable only if the device is in Standby state. Otherwise, an error is detected.

4D

77

Clear_Files_in_Primary

X

X

Applicable only if the device is in Primary state. Otherwise, an error is detected.

X = supported

— = not supported