Hitachi S10VE, User Manual

Page: 404 / 506

13. Troubleshooting
13-59
Table 13-28 Error codes reported to the CPU module from the ET.NET module (4/4)
No. Error code Error message Description
ERR
LED
ALARM
LED
CPU module
indicator
display
Corrective action
50 Nothing
displayed --
#2, #4
Carrier loss error -- -- None If the error persists,
check and correct the
transmission line.
51 Nothing
displayed --
#4
Retry error -- -- None If the error persists,
check and correct the
transmission line.
52 Nothing
displayed --
#4
Late collision error -- -- None If the error persists,
check and correct the
transmission line.
53 Nothing
displayed --
#4
Transmission/recept
ion buffer overflow -- -- None Check and correct the
network load.
54 Nothing
displayed --
#4
Socket table
overflow -- -- None Check and correct the
application program.
ON: On, --: Off
#1: This message is output once when the error is detected five times consecutively.
#2: If a cable becomes disconnected during TCP communication, the connection is lost. If the error persists, a carrier loss error
occurs, and nothing is output to the error logs.
#3: The channel on which the error occurred can be determined from the error logs.
#4: Errors related to communication failures increment the count information, and are not included in the error report.
#5: The following are checked in the given order of priority, and if an error is detected, an error is reported and operation is stopped.
(1) No. 46 MAIN/SUB setting switch setting error
(2) No. 45 MAIN/SUB setting switch duplicate setting
(3) No. 47 ST.No. setting switching setting error
#6: The ALARM LED turns on for all ET.NET modules for which the MAIN/SUB settings are duplicated, and the error is output to
the error log of the module with the smallest installation slot number.
#7: When accessing the CPU module or another ET.NET module from an ET.NET module, information is recorded if the ET.NET
module detects a bus error.
#8: When accessing an ET.NET module from the CPU module or another ET.NET module, information is recorded if the ET.NET
module detects a bus error.