Chapter 10 Troubleshooting 
 
10-9 
 
10.4 Communication error code
 
 
10.4.1 Status with a communication frame  
It is an error code to reply error for the request of the communication using XGT dedicated 
communication header such as “LSIS-XGT” or “LGIS-GLOFA”. 
It can check an error code in error code address. 
 
Code(ex) 
...  h’0055  h’0002  h’0000 
h’FFFFor h’00FF 
(not ‘0‘) 
h’0004 
 
 
[picture 10.4.1] Response frame for exceed an accessible address 
When requesting Single Read/Write, the number of block is larger than 16 
Data type which is not X,B,W,D,L is received 
Device not serviced is requested (XGK : P, M, L, K, R, , XGI : I, Q, M..) 
It can read or write maximum 1400byes at once. That restriction is exceeded 
(Single block size) 
It can read or write maximum 1400byes at once. That restriction is exceeded 
(Total size per block) 
First part of frame header is wrong at dedicated service (‘LSIS-GLOFA’) 
Length of frame header is wrong at dedicated service 
Checksum of frame header is wrong at dedicated service 
Instruction is wrong at dedicated service 
 
(1) If you check frame with frame capture tool, Data occurs byte swap. 
 (Difference by endian) 
   Ex) h’0054  ⇒  h’5400