Hi , to all .

we have a midimaster drive and can't communicated to that !

I made an cable D-9 ( male & female ) by connection exchanged on pin 3 , 8 according to siemens manual .

otherhand i used terminal 13 , 14 on X1  terminal directly , so nothing !!

I sure my adapter ( rs485 / rs232 ) is health , because connected to MM420 and working my drive monitor !

I'm be glad if everyone suggest me .

thanks

Hi

Are you sure this parameter interference for communication by RS485??

hi eveeryone

finally i bought another adapter and won .