We,according to the experience judgement in the past.
Present the same question while opening:Application Error.Can't enter ,so I know from here I must solve the problem of the software first .An easier one resets FmNT software and only needs to unload the existing software to reinstallate at present.Find software can enter ,the next step I is it test hardware trouble to begin after the installation,so I begin to dispose each hardware device ,for instance:COM2 conveyor; COM3 scale; COM4 heater.I find in this course that begin not to dispose from COM3 ,show that opens this port mistake,COM mouth information that I began let of PORT of the control panel,found that began to disappear from COM3 later on,so I myself begin to dispose COM3 to COM6.Pinpoint the problems to remain unchanged after opening the system again,I know COM a card of ours is out of order,so the basic reason appears on 4 PORT BLASTRONIX card .