Chapter 13 Warning CodesC2000-HS 
 
13-36
ID No.  Display on LCM Keypad  Warning Name  Description 
83 
 
Return defect   
(ECrF) 
Communication card returns to the default setting 
Action and Reset 
Action level  Communication card returns to the default setting 
Action time  N/A 
Warning setting parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately resets 
Record  N/A 
Cause  Corrective Actions 
Communication card is returning to 
default setting 
No actions. 
 
ID No.  Display on LCM Keypad  Warning Name  Description 
84 
 
Modbus TCP over 
(Eco0) 
MODBUS  TCP  exceeds  maximum  communication 
value 
Action and Reset 
Action level  Hardware detection 
Action time  Immediately acts 
Warning setting parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately resets 
Record  N/A 
Cause  Corrective Actions 
The Master communication value 
is more than the allowable quantity 
of the communication card 
Reduce Master communication value 
The upper unit is online without 
communicating, and does not 
break off the MODBUS TCP link, 
causes occupy connection 
Revise program of upper unit, the communication should be break off when it is 
not used for a long time 
A new MODBUS TCP connection 
is built every time when the upper 
unit is connected to the 
communication card, which 
caused occupy connection 
Revise program of upper unit: use the same MODBUS TCP connection when 
connected to the same communication card