Logo Hitachi This Hitachi IOServer allows the eWON to poll tags belonging to a HITACHI EH series PLC using its serial link or Ethernet interface.

eWON uses standard H protocol (for serial RS232), station number H protocol (for serial RS485), and Ethernet H-protocol (for Ethernet). The remote maintenance functionality for serial communication is provided by the VCOM feature of eWON.

You can learn more about the VCOM solution on the eVCOM software page.


Hitachi IOServer (extract from RG-001) Hitachi.pdf
Hitachi Serial cablesKB-0013.pdf