Beckhoff TwinCAT 2 TX1200, Manual

Page: 62 / 80

Programming
TX1200 62 Version: 1.1
ManuelMode: FALSE: manual operation allowed. TRUE: manual operation disabled.
strDataKL6771: the data structure with which the KL6771 [ } 25] function block must be linked (see
DataKL6771 [ } 72] ).
TMpolling: the time for which the function block should address the actuator. Default 10 s, minimum time
1 s.
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
iErrorId : MP_Error;
WindowState : Data_Window;
Window_Mech_Error : BOOL;
Memory_Error : BOOL;
bBusy: This bit is set for as long as the block is active.
bError: The output becomes TRUE as soon as an error occurs. The error is described via the variable
iErrorId .
iErrorId: The output issues an error code when an error occurs (see MP_ERROR [
}
70] ). Simultaneously
bError is TRUE.
WindowState: Current value of the parameters (see Data_Window [
}
65] ).
Window_Mech_Error: The window or drive is blocked.
Memory_Error: The drive has a memory error. Reprogram or replace.
6.2.24 MPL_DamperLinearActuator
This function block is used to control and monitor an actuator of a damper and of a globe valve.
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. bError is used to indicate an error in communication with the actuator. The
type of the error can be read with iErrorID .
SetPoint is used to adjust the position of the damper from 0...100 %. The current position of the actuator can
be read through ActValue .
VAR_INPUT
MP_Address : USINT := 1;
bStart : BOOL;
SetPoint : USINT;
strDataKL6771 : DataKL6771;
TMpolling : TIME := t#10s;
MP_Address: MP-Bus address of the slave.
bStart: 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 .
SetPoint: 0...100 % the set damper position specified for the actuator.