how to use the easyplc connect a real plc?
You must use the PC card intefaces showed in the nirtec webpage:
http://www.nirtec.com/index.php/purchase-price/ (http://www.nirtec.com/index.php/purchase-price/)
OPTION 3 -> USB-OPTO-RLY88 interface card (includes USB License) - You will be able to connect external devices to your PC with the interface card
OPTION 4 -> A-1055S interface card (includes USB License) - You will be able to connect external devices to your PC with the interface card
OPTION 5 -> A-1860 interface card (includes USB License) - You will be able to connect external devices to your PC with the interface card
More info here -> http://www.nirtec.com/index.php/interfaces-io/ (http://www.nirtec.com/index.php/interfaces-io/) (see USB Interfaces)
may I use the ModBus driver to connect the Mitsubishi's GX Similator2?
If this PLC uses the standard MODBUS protocol, the answer is YES.
Can you give me a tutorial about modbus driver? There is no description in the user manual.