Input Description

Note

The inputs marked with a triangle are of the class VAR_IN_OUT (input and output variable). These inputs must be connected to a variable.

EN (enable)

Data type: BOOL

The Function Block is activated (EN = TRUE) or deactivated (EN = FALSE) via input EN. If the block is active, the current values are available at the outputs. To start a new write job the input EN has to be set from FALSE to TRUE.

If the input values are valid, a request is sent to the Communication Block via the DRIVE_DATA variable. If, at least 1 input is invalid, no job is generated and the error is displayed at the outputs ERR and ERNO instead.

PRM_NUM (parameter number)

Data type: WORD

Input PRM_NUM is the parameter number in the drive which will be read. The parameter number is calculated from group number and index.

Parameter: 2 digits = group, 2 digit = index, e.g. Par 20.06 = 2006

VALUE (value)

Data type: DINT

Parameter value of the READ parameter

DRIVE_DATA (drive data)

Data type: ACS_DRIVE_DATA_TYPE ACS_DRIVE_DATA_TYPE Structure to Exchange Data Between Function Blocks for 1 Drive

The combined input/output DRIVE_DATA must be connected to the variable of type ACS_DRIVE_DATA_TYPE of the related ACS drive (slave). Each drive must have its own DRIVE_DATA variable.

The DRIVE_DATA variable contains the data of the drive and must be connected to all related Function Blocks of this drive.