Delta EtherCAT - _ECAT_Master_Open

EtherCAT Programming Guide Master Initialization
March, 2017 6-3
6
6.1 _ECAT_Master_Open
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Syntax
U16 PASCAL _ECAT_Master_Open(U16 *Cardnum)

Purpose
This is for checking the number of motion cards and EtherCAT kernels, as well as creating
memory block.
Note:
1. This is the most essential API for controlling Delta EtherCAT master. Please execute this API before
starting using other functions.
2. If the acquired quantity is 0, it means the environment for executing the program does not support
EtherCAT communication.
3. To avoid blue screen death, DO NOT use this API in the thread when using C# to develop RTX
environment.

Parameter
Name Data type Property Description
CardNo U16 Number
Quantity of the motion control cards or EtherCAT
kernels

Example
U16 Status;
U16 Cardnum=0;
Status = _ECAT_Master_Open(&Cardnum);