FB_SMIDiagAll

FB_SMIDiagAll 1:

The function block FB_SMIDiagAll can be used to determine in which direction the drives are moving, whether they are stopped or whether there is a motor error. The command can also be sent also to several SMI slaves. The states of all SMI slaves can thus be queried with a single command.

The result of the query is forwarded by four outputs. Each of these outputs can assume three states:

The condition applies to at least one drive.
The condition does not apply to any drive.
The condition could not be determined.

Some examples of this are explained further below.

Inputs

VAR_INPUT
  bStart           : BOOL;
  dwAddr           : DWORD := 0;
  eAddrType        : E_SMIAddrType := eSMIAddrTypeAddress;
  dwAddrOption     : DWORD := 0;
  eCommandPriority : E_SMICommandPriority := eSMICommandPriorityMiddle;
END_VAR

Name	Type	Description
bStart	BOOL	The function block is activated and the command is sent by applying a positive edge to this input.
dwAddr	DWORD	Manufacturer code (0-15), address of a device (0-15), bit field (16 bits) for group addressing or slave ID (32-bit key ID). This input has no meaning if a broadcast is sent.
eAddrType	E_SMIAddrType	Specifies whether the input dwAddr is to be evaluated as manufacturer code, address of a device or for group addressing. Addressing via slave ID (eAddrType = eSMIAddrTypeSlaveId) is not permitted.
dwAddrOption	DWORD	Reserved for future extensions
eCommandPriority	E_SMICommandPriority	Priority (high, medium or low) with which the command is processed by the PLC library.

Inputs/outputs

VAR_IN_OUT
  stCommandBuffer : ST_SMICommandBuffer;
END_VAR

Name	Type	Description
stCommandBuffer	ST_SMICommandBuffer	Reference to the structure for communication (buffer) with the function block FB_KL6831KL6841Communication()

Outputs

VAR_OUTPUT
  bBusy          : BOOL;
  bError         : BOOL;
  udiErrorId     : UDINT;
  eResDrivesUp   : E_SMIDiagResDrivesUp;
  eResDrivesDown : E_SMIDiagResDrivesDown;
  eResIsStopped  : E_SMIDiagResIsStopped;
  eResWithError  : E_SMIDiagResWithError;
END_VAR

Name	Type	Description
bBusy	BOOL	This output is set as soon as the function block processes a command and remains active until the command has been processed. For some errors (e.g. faulty parameters), bError is set immediately after the positive edge at bStart without bBusy switching to TRUE.
bError	BOOL	This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in udiErrorId. The output is reset to FALSE by the reactivation of the function block via the input bStart.
udiErrorId	UDINT	Contains the command-specific error code of the most recently executed command. It is reset to 0 by the reactivation of the function block via the input bStart (see error codes).
eResDrivesUp	E_SMIDiagResDrivesUp	At least one motor is driving up / no motor is driving up / the value is undefined
eResDrivesDown	E_SMIDiagResDrivesDown	At least one motor is driving down. / no motor is driving down. / the value is undefined.
eResIsStopped	E_SMIDiagResIsStopped	At least one motor is stopped. / no motor is stopped. / the value is undefined.
eResWithError	E_SMIDiagResWithError	At least one motor is faulty. / no motor is faulty. / the value is undefined.

Examples

All drives have stopped:

Outputs	Meaning
eResDrivesUp = eSMIDiagResNoMotorDrivesUp	No drive is driving up
eResDrivesDown = eSMIDiagResNoMotorDrivesDown	No drive is driving down
eResIsStopped = eSMIDiagResAtLeastOneMotorIsStopped	At least one drive is stopped
eResWithError = eSMIDiagResNoMotorWithError	No drive has a motor error

All drives are driving up:

Outputs	Meaning
eResDrivesUp = eSMIDiagResAtLeastOneMotorDrivesUp	At least one drive is driving up
eResDrivesDown = eSMIDiagResNoMotorDrivesDown	No drive is driving down
eResIsStopped = eSMIDiagResNoMotorIsStopped	No drive is stopped
eResWithError = eSMIDiagResNoMotorWithError	No drive has a motor error

One drive is stopped and one drive is driving up:

Outputs	Meaning
eResDrivesUp = eSMIDiagResAtLeastOneMotorDrivesUp	At least one drive is driving up
eResDrivesDown = eSMIDiagResNoMotorDrivesDown	No drive is driving down
eResIsStopped = eSMIDiagResAtLeastOneMotorIsStopped	At least one drive is stopped
eResWithError = eSMIDiagResNoMotorWithError	No drive has a motor error

One drive is stopped, one drive is driving up and one drive is driving down:

Outputs	Meaning
eResDrivesUp = eSMIDiagResAtLeastOneMotorDrivesUp	At least one drive is driving up
eResDrivesDown = eSMIDiagResAtLeastOneMotorDrivesDown	At least one drive is driving down
eResIsStopped = eSMIDiagResAtLeastOneMotorIsStopped	At least one drive is stopped
eResWithError = eSMIDiagResNoMotorWithError	No drive has a motor error

Requirements

Development Environment	PLC library to include
TwinCAT from v3.1.4020.14	Tc2_SMI from 3.3.5.0