Moxa M-1401 Instrukcja Obsługi Pobierz pdf (Strona 12)

ioLogik MXIO DLL API Reference Programming Flow

2-2

Connecting to a Single Ethernet I/O

The MXIO Linux Library establishes a data tunnel using Modbus commands to communicate with

the Ethernet I/O. Access is usually established using TCP port number 502.

ioLogik 4000 remote I/O

IP: 192.168.8.1

Port: 502

ioLogik E2000 Ethernet I/O

IP: 192.168.8.1

Port: 502

Three steps are required to access remote I/O data using the MXIO Linux Library.

1. Use MXEIO_Connect to connect to the Ethernet I/O using IP:Port (e.g., 192.168.8.1:502).

MXEIO_Connect should return a handle.

2. Use the handle to access the desired I/O point with Modbus commands or direct I/O

commands.

3. To finish the operation, use MXEIO_Disconnect to release Windows system resources.

Program Flow I.

Connecting to a Single Ethernet I/O

MXEIO Connect

Direct I/O

Command Sets

Modbus Command Sets

MXEIO Disconnect

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 128 129

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Moxa M-1401 Instrukcja Obsługi Strona 12