The EnergyStandbyManagementType ObjectTypes provide access to the Standby Management functionality of one Standby Management Entity. Parallel access of Clients to the read only data shall be possible but write operations and Method invocation can be limited to one Client at a time with the Lock Object.

Table 12 – EnergyStandbyManagementType Definition

Attribute

Value

BrowseName

EnergyStandbyManagementType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the BaseObjectType defined in [OPC 10000-5].

0:HasComponent

Variable

StandbyManagementStatus

Byte

0:MultiStateDiscreteType

M, RO

0:HasComponent

Object

EnergySavingModeStatus

EnergySavingModeStatusType

M

0:HasComponent

Object

EnergySavingModes

EnergySavingModesContainerType

O

0:HasComponent

Variable

PauseTime

0:Duration

0:BaseDataVariableType

M, RW

0:HasComponent

Object

2:Lock

2:LockingServicesType

O

0:HasComponent

Method

StartPause

O

0:HasComponent

Method

EndPause

O

0:HasComponent

Method

SwitchToEnergySavingMode

O

The StandbyManagementStatus Variable shall contain the current state of the Standby Management. The value of this Variable shall be consistent with the content of the EnergySavingModeStatus Object.

The values of the 0:EnumStrings of the StandbyManagementStatus shall follow the definition of Table 13. Each instance shall have the values 0 to 8. Element numbers 9-15 are reserved for future use. If vendors add specific elements, the range 9-15 shall be filled with ‘null’-strings.

Table 13 – Defined elements of EnumStrings array of StandbyManagementStatus Variable

Element number (starting with 0)

Message (for locale “en”)

0

Energy saving disabled

1

Power Off

2

Ready to operate

3

Moving to Energy Saving Mode

4

Energy saving mode

5

Moving to ready to operate

6

Moving to Sleep mode WOL

7

Sleep mode WOL

8

Wake up WOL

9-15

‘null’-String

16 – 255

Vendor specific

The Variables of the EnergyStandbyManagementType have additional Attributes defined in Table 14

Table 14 – EnergyStandbyManagementType Attribute values for child Nodes

Source Path

Value Attribute

StandbyManagementStatus

0:EnumStrings

Energy saving disabled

Power Off

Ready to operate

Moving to Energy Saving Mode

Energy saving mode

Moving to ready to operate

Moving to Sleep mode WOL

Sleep mode WOL

Wake up WOL

The EnergySavingModes container Object contains References to EnergySavingModeType Objects representing the supported Energy Saving Modes.

Writing the PauseTime Variable can be used to update the pause time alternatively to the StartPause Method. Setting the PauseTime Variable with a value not equal to 0 shall have the same effect as invoking the StartPause Method passing the PauseTime value. Setting the PauseTime Variable with a value equal to 0 shall have the same effect as invoking the EndPause Method. An additional benefit is that the Variable PauseTime can be used in a PubSub communication scenario where the PauseTime is distributed by a central time management client using a broadcast telegram to which every Standby Management Entity subscribes.

The Lock Object ensures exclusive write access and Method call for one client. Write access and Method calls from Clients shall be blocked unless the client has locked the Object by invoking the InitLock Method of the Lock Object.

The StartPause Method starts the transition to an Energy Saving Mode. The SwitchToEnergySavingMode allows the transition into a specific Energy Saving Mode. The EndPause Method ends the Energy Saving Mode.

A RepresentedBy Reference may connect the Object to the representing PROFIenergy service access point Object (see PeServiceAccessPointType). The BrowseName of the Reference shall be “PESAP”.

This Method starts the transition into an Energy Saving Mode.

Signature

StartPause (

[in] 0:DurationPauseTime

[out] 0:Byte ModeID

[out] 0:DurationCurrentTimeToDestination

[out] 0:DurationRegularTimeToOperate

[out] 0:DurationTimeMinLengthOfStay

[out] 0:Byte ReturnCode

);

Argument

Description

PauseTime

Requested pause time.

ModeID

ID of the destination Energy Saving Mode if successful, otherwise 0.

CurrentTimeToDestination

Time needed to reach the Energy Saving Mode if successful, otherwise 0.

RegularTimeToOperate

Time needed to reach “Ready to operate” again if the destination Energy Saving Mode will be regularly terminated if successful, otherwise 0.

TimeMinLengthOfStay

Time of minimum stay in the destination Energy Saving Mode if successful, otherwise 0.

ReturnCode

Return code. See Table 16.

The Method Result Codes (defined in Call Service) are defined in Table 15.

This Method initiates a switch to a certain Energy Saving Mode.

Signature

SwitchToEnergySavingMode (

[in] 0:Byte ModeID

[out] 0:Byte EffectiveModeID

[out] 0:DurationCurrentTimeToDestination

[out] 0:DurationRegularTimeToOperate

[out] 0:DurationTimeMinLengthOfStay

[out] 0:Byte ReturnCode

);

Argument

Description

ModeID

ID of the requested Energy Saving Mode.

EffectiveModeID

ID of the effectively chosen Energy Saving Mode if successful, otherwise ID of current mode.

CurrentTimeToDestination

Time needed to reach the destination Energy Saving Mode if successful, otherwise 0.

RegularTimeToOperate

Time needed to reach “Ready to operate” again if the destination Energy Saving Mode will be regularly terminated if successful, otherwise 0.

TimeMinLengthOfStay

Time of minimum stay in the destination Energy Saving Mode if successful, otherwise 0.

ReturnCode

Return code. See table Table 16.

The Method Result Codes (defined in Call Service) are defined in Table 15.

This Method ends the current Energy Saving Mode.

Signature

EndPause (

[out] 0:DurationCurrentTimeToOperate

[out] 0:Byte ReturnCode

);

Argument

Description

CurrentTimeToOperate

Time needed to reach “Ready to operate” if successful, 0.

ReturnCode

Return code. See table Table 16.

The Method Result Codes (defined in Call Service) are defined in Table 15.

Table 15 shows the possible values for the Method call result codes.

Table 15 – Possible Method result codes

Result Code

Description

Good

The Method execution was successful and the ReturnCode parameter has the value 0x00 (”Success”)

Uncertain

The Method execution was successful, but the ReturnCode parameter indicates an error.

Bad_UserAccessDenied

The user has not the right to execute the Method. The client shall not evaluate the ReturnCode parameter.

Bad_UnexpectedError

The server is not able to execute the function because an unexpected error occurred. The device might be temporarily unavailable or unreachable due to network failure. The client shall not evaluate the ReturnCode parameter.

Table 16 shows the possible values for the out parameter ReturnCode.

Table 16 – Possible ReturnCode parameter Values

ReturnCode

Description

0x00

Success.

0x50

No suitable energy-saving mode available.

0x52

No switch to requested energy-saving mode because of invalid mode ID.

0x53

No switch to Energy Saving Mode because of state operate.

0x54

Service or function not available due to internal device status.