User manual

7–20
Chapter 7 – RUN Mode and Errors
LT Series User Manual
 PLC COM. ERROR
Appears when the address setup for tags exceeds the address range used in the
host (PLC/external device). Check the Error Number, and use the following table
to solve the problem.
Constant Value
Error Code
(see table below)
PLC COM. ERROR ( 02 : x x )
Error Problem Countermeasure
FC
The communication settings for this unit do
not match the host’s settings.
Change the SIO communication settings to
match the host’s.
FB
The address used for storing Trend graph
data, or the address set by an alarm
message is not within the specified range
(Address Range Error).
When using Memory Link type, set the
addresses within the set range of the
System Data Area (0 to 2047), and resend
the correct data.
FA
Address Range Error
Set the addresses within the allowable
range.
Other
Lists the Error Number from the PLC.
For information about the Error Number,
refer to the corresponding PLC manual, or
contact the PLC manufacturer.