Dear sir

I cannot access to Midimaster using laptop.

knowing that i can connect OPM2 with a cable and it is working, for using a Laptop i have used both software, drive monitor and simovis, tried all baud rates, tried many cables point to point serial 232, OPM2 cable, 485 cable but always i got status code 104 which means PARITY FAILURE, i still don't know how to communicate with laptop.

best regards

Hello,

To clarify situation. To connect MIDI Master drive with PC you need RS232/RS485 converter. There is a 9-pin SUB-D socket connector (X502) on the membrane keypad which provides access to the RS 485 interface. Pins assigment you could find in http://automation-drives.ru/sd/download/archive/3/da64_en.pdf page 67.
Another way (seems you have it) with optional Clear Text Display. Its provide isolated RS232 interface for connecting to a PC. Description of pins find in

How to download from old thread.

Now if we assume cables and "drive' are ok this failure could be regard to COM port of PC. Check there settings of COM port. My suggestion is:

Bits per second	9600	Leave the presettings
	Data bits		8
	Parity		None
	Stop bits		1
	Flow control		None

Hope this will helps.

Best regards,
Hristo Mihalev