W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Manuals:

Web-IO 4.0 230V Relay


Current manuals:

Startup and use
Date Description Revision
February 21, 2022 Manual 1.54
PDF download
Programming and protocols
Date Description Revision
December 6, 2021 Complete programming manual 1.52
PDF download
November 5, 2020 Overview of ASCII socket commands 1.00
PDF download
November 5, 2020 Overview of possible HTTP requests 1.00
PDF download