Data Area

In general, TcCOM objects can contain data areas that can be used by the environment (e.g., by a PLC instance or by the TwinCAT I/O area). For TwinCAT MC3 TcCOM objects, you have a choice of data structures to use via the Data Area tab.

EtherCAT Encoder Inputs

Enable (default)

Name

Type

Description

Data Area 1:

Position

DINT

Actual position in increments.

Data Area 2:

Velocity

DINT

Actual speed in increments

Data Area 3:

Status

WORD

Current status of the slave

Data Area 4:

WcState

BIT

Working counter. Indicates whether there was valid real-time communication during the last cycle.

Data Area 5:

InputToggle

BIT

Level change upon receipt of a new telegram.

Data Area 6:

DcInputShift

DINT

Used for dead-time compensation of the drive.