MP_Smoker

MP_Smoker 1:

This function block is used to control and monitor a fire damper.

MP_Address is used to specify the MP-Bus device with which the function block is to communicate. bStart activates communication with the MP-Bus device. bBusy indicates that the function block is active. If bStart remains TRUE, the device is addressed cyclically with a period specified by the time in TMPolling. The time should be set longer than 1 s, maximum 30 s. bError is used to indicate an error in communication with the drive. The type of the error can be read with iErrorID.

A rising edge at bReset clears any pending error messages from the drive. A telegram is thus sent to the drive that acknowledges the errors in the drive.

If they persist, they remain set. This applies to all bErr_* error bits.

bOpen_Close is used to open or close the fire damper. TRUE causes the fire damper to open, while FALSE closes it. bOpen indicates that the damper is open, bClosed indicates that it is closed. If both bits are FALSE, the drive is currently opening or closing.

A rising edge at bTest initiates a test run on the fire damper. Errors that have been set can be cleared with this if they are no longer present.

Inputs

VAR_INPUT
  MP_Address     : USINT := 1;
  bStart         : BOOL := TRUE;
  bTest          : BOOL;
  bOpen_Close    : BOOL;
  bReset         : BOOL;
  strDataKL6771  : DataKL6771;
  TMpolling      : TIME := t#10s;
END_VAR

Name	Type	Description
MP_Address	USINT	MP-Bus address of the slave.
bStart	BOOL	A positive edge starts the function block. If this remains continuously TRUE, the function block will be activated cyclically with a period specified by the time in TMPolling.
bTest	BOOL	A positive edge starts the test run at a fire damper.
bOpen_Close	BOOL	TRUE opens a damper, while FALSE closes a damper.
bReset	BOOL	A positive edge resets the actuator's error messages.
strDataKL6771	DataKL6771	The data structure with which the KL6771() function block must be linked.
TMpolling	TIME	The time for which the function block should address the actuator. Default 10 s, minimum time 1 s.

Outputs

VAR_OUTPUT
  bBusy         : BOOL;
  bError        : BOOL;
  iErrorId      : MP_Error;
  bOpen        : BOOL;
  bClosed      : BOOL;
  bErr_MecTrv  : BOOL;
  bErr_MecOvld : BOOL;
  bErr_EmFlt   : BOOL;
  bErr_DmpTrv  : BOOL;
  bErr_DctAlm  : BOOL;
  bErr_SmAlm   : BOOL;
END_VAR

Name	Type	Description
bBusy	BOOL	This bit is set for as long as the function block is active.
bError	BOOL	This output goes TRUE as soon as an error occurs. This error is described via the iErrorId variable.
iErrorId	MP_ERROR	This output outputs an error code in the event of an error. bError goes TRUE at the same time.
bOpen	BOOL	Fire damper is open.
bClosed:	BOOL	Fire damper is closed.
bErr_MecTrv	BOOL	Actuator error, "Positioning angle exceeded"; the actuator has passed more than 10° beyond the adaptation position.
bErr_MecOvld	BOOL	Actuator error, "Overload"; the set position could not be reached.
bErr_EmFlt	BOOL	Actuator error, "Safety-relevant error"; ambient temperature above 72 °C or motor temperature above 85 °C. Error can only be reset at the factory.
bErr_DmpTrv	BOOL	Actuator error "Damper test error" is canceled if the test run is OK.
bErr_DctAlm	BOOL	Actuator error, "Channel temperature too high"; the actuator is swinging backwards and forwards.
bErr_SmAlm	BOOL	Actuator error, "Smoke alarm"

Requirements

Development environment	required TC3 PLC library
TwinCAT from v3.1.4020.14	Tc2_MPBus from 3.3.5.0