Dear Heckler,
Good day!
Sorry about the post. Long time no do the posting. Forgot how to post the code format.

Aside Henrik,
I do read the datasheet of PIC18F4620 and know the EEPROM address is 0 to 1023.
I also try your suggestion like below code,

Code:
Checking Step:
 READ $ 200, step
 step = step + 1
 WRITE $200, step
 DEBUG "step = ",DEC step,10,13 
 
 if step = 1 then power_on
 '.......... continue step increase until step is 14.
 If step = 14 then multimeter_judge
 goto Checking Step

multimeter_judge:
 multimeter_string (64) = 0
 DEBUGIN timeout,meter_ng, STR multimeter_string\64
 WRITE $100, multimeter_string(0)
 WRITE $101, multimeter_string(1)
 WRITE $102, multimeter_string(2)
 WRITE $103, multimeter_string(3)

 if multimeter_string (2)= "H" then judge_ng
 goto multimeter_judge

 judge_ng:
 DEBUG STR multimeter_string(2),10,13 
' Sorry I must highlight here for other step is NG, the result can show in hyperterminal except step = 14, the program can run but no output shown in hyperterminal through comport