SYSTEM MESSAGES

[20H] Data Memory Verification Discrepancy

1: 20XX XX00 XXXX XXXX 2: XXXX XXXX XXXX XXXX 3: 0000 0000 0000 0000

 

 

➀ ➁

 

 

 

 

 

 

 

 

 

 

 

4:

0000

0000

0000

0000

5:

0000

0000

0000

0000

6:

0000

0000

0000

0000

7:

0000

0000

0000

0000

8:

0000

0000

0000

0000

9:

0000

0000

0000

0000

 

 

 

 

 

 

 

Error detection by Routine

 

[20H] Data Memory Verification Discrepancy

 

 

 

Diagnosis

 

 

 

 

 

 

 

 

 

 

 

 

 

Verification of HFC

 

 

b0:

0/1 = -/HFC 0 is normal

b7

b1

 

b1:

0/1 = -/HFC 1 is normal

b0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Verification of Data Memory

 

b0:

0/1 = -/Present Data Memory (DM)

b7

b2

b1

b0

b1:

0/1 = -/Local Data Memory (LDM)

b2:

0/1 = -/Network Data Memory (NDM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data analyzed by NEC Engineers

CHAPTER 3

NDA-24300

Page 138

Issue 1

Page 165
Image 165
NEC NDA-24300 manual 20H Data Memory Verification Discrepancy, Diagnosis ➁ Verification of HFC