FB_MTP_MonBinDrv

The function block FB_MTP_MonBinDrv is an object for controlling a binary drive from different sources: internal PLC logic or manual operation (e. g. via OPC UA). Switching requests are managed via the state machine of Operation Mode. It also includes the option of monitoring the output values with the respective feedback signals. The OPC UA access rights are described in the variable tables.

Controlling the drive

The direction of rotation of the drive is specified via the switching requests Fwd*, Rev* and Stop*. The state machine of the Operation Mode manages whether and from which source new switching requests are processed. With simultaneous requests from Fwd* and Rev*, both are prioritized equally and the drive remains in its state. Stop* is prioritized highest at SafePos = FALSE with simultaneous requests from Fwd*, Rev* and Stop*. If SafePos = TRUE, the switching requests Fwd*, Rev* and Stop* are prioritized equally and the drive remains in its current state in the event of simultaneous requests.

When Locking is active, it is no longer possible to control the drive, depending on the type of interlock.

Safety position

The safety position is defined via the variables SafePos, SafePosDirEn and SafePosDir.

The variable SafePos is used to specify whether the safety position of the drive is the de-energized state or an active state.

	The variables `SafePosDirEn` and `SafePosDir` are not part of the MTP guideline. They have also been implemented and can be used to define a safety position in the active state. These variables are not listed in the MTP file and are not made available via OPC UA.

Safety position: de-energized state

In the de-energized state, the safety position of the drive is: FwdCtrl = FALSE and RevCtrl = FALSE.

Safety position: active state

For the active state, the default direction of rotation can be enabled (SafePosDirEn = TRUE) and the direction of rotation can be specified (SafePosDir).

If the specification of the direction of rotation is disabled SafePosDirEn = FALSE, the current movement state (forward, reverse or stop) is the safety position.

If the default setting is enabled, the safety position SafePosDirEn = TRUE forward (SafePosDir = FALSE) or reverse (SafePosDir = TRUE).

Monitoring

The control and the respective Feedback can be monitored via Feedback monitoring.

Further characteristics

Inheritance hierarchy

FB_MTP_BinDrv

FB_MTP_MonBinDrv

Inputs

Name	Type	Description	OPC UA access
TagName	STRING	Name of the interface	-
TagDescription	STRING	Description of the interface	-
WQC	BYTE	Worst Quality Code	Read
OSLevel	BYTE	Level must be defined for system. Value 0 is reserved for local operation.	Read/write
State*		See Operation Mode
FwdEn	BOOL	Enable forward movement: 1: Enabled 0: Disabled	Read
RevEn	BOOL	Enable reverse movement: 1: Enabled 0: Disabled	Read
StopAut	BOOL	`Automatic` switching request to set the drive to stop: (Relevant if `StateAutAct`) 1: Execute stop. 0: No stop	Read
FwdAut	BOOL	`Automatic` switching request to set the drive in forward motion: (Relevant if `StateAutAct` & `FwdEn`) 1: Execute forward movement. 0: Do not execute any forward movement.	Read
RevAut	BOOL	`Automatic` switching request to set the drive in forward motion: (Relevant if `StateAutAct` & `RevEn`) 1: Execute reverse movement. 0: Do not execute any reverse movement.	Read
FwdFbkCaIc	BOOL	Source of the feedback signal Forward movement: 1: Calculated 0: Sensor	Read
FwdFbk	BOOL	Feedback signal Forward movement: 1: Forward movement 0: No forward movement	Read
RevFbkCaIc	BOOL	Source of the feedback signal Reverse movement: 1: Calculated 0: Sensor	Read
RevFbk	BOOL	Feedback signal Reverse movement: 1: Reverse movement 0: No reverse movement	Read
Perm* Int* Prot*		See Locking
Trip	BOOL	Signaling contact for motor protection: 1: No error 0: Motor protection tripped.	Read
SafePos	BOOL	1: Retain current state. 0: Stop	Read
SafePosDirEn	BOOL	1: Rotation direction specification for `SafePos` `= TRUE` via the variable `SafePosDir` 0: No rotation direction specified	–
SafePosDir	BOOL	Rotation direction specification for `SafePos` `= TRUE` and `SafePosDirRpmEn = TRUE` 1: reverse 0: forward	–
MonStatTi	REAL	Monitoring time for static errors [s]	Read
MonDynTi	REAL	Monitoring time for dynamic errors [s]	Read
MonSafePos	BOOL	Behavior of the interface after an error occurs: 1: Safe position should be approached. 0: The current state is retained.	Read
ResetAut	BOOL	`Automatic` reset switching request: 1: Reset requested. 0: No reset requested.	Read

Outputs

Name	Type	Description	OPC UA access
State*		See Operation Mode
FwdCtrl	BOOL	Forward movement: 1: active 0: inactive	Read
RevCtrl	BOOL	Reverse movement: 1: active 0: inactive	Read
SafePosAct	BOOL	Safety position enabled: 1: Safety position is active. 0: Safety position is not active.	Read
MonStatErr	REAL	Static error: 1: active 0: inactive	Read
MonDynErr	REAL	Dynamic error: 1: active 0: inactive	Read

External variables

Name	Type	Description	OPC UA access
State*		See Operation Mode
StopOp	BOOL	`Operator` switching request to set the drive to stop: (Relevant if `StateOpAct`) 1: Execute stop. 0: Do not execute a stop.	Read/write
FwdOp	BOOL	`Operator` switching request to set the drive in forward movement: (Relevant if `StateOpAct` & `FwdEn`) 1: Execute forward movement. 0: Do not execute any forward movement.	Read/write
RevOp	BOOL	`Operator` switching request to set the drive in forward movement: (Relevant if `StateOpAct` & `RevEn`) 1: Execute reverse movement. 0: Do not execute any reverse movement.	Read/write
MonEn	BOOL	Enable `FeedbackMonitoring`: 1: `FeeedbackMonitoring` active 0: `FeedbackMonitoring` inactive	Read/write
ResetOp	BOOL	`Operator` reset switching request: 0→1: `Operator` request 1→0: Request has been processed.	Read/write

Methods

Name	Description
SetOffline SetOperator SetAutomatic	See Operation Mode

Name

Description

SetOffline

SetOperator

SetAutomatic

See Operation Mode