When an error message is displayed (Error code list)
Maintenance/Troubleshooting
1-137
RHxx085 (Node Name): Too
many requests to
read. The request
was ignored.
A read operation was contin-
ued at timing which exceeds
the processing speed of the
communication driver.
Example) When a read oper-
ation from a connected
device set up with a baud rate
of 9600 is continued accord-
ing to the update timing of
the tag scan counter.
Check if a D-script or other
setting has been specified
which continues reading at
fast speed.
This error may occur when
reading from a device
which communicates at a
low speed such as 9600 bps
is continued with a D-script
using a bit which turns ON/
OFF at fast speed (such as
the LS2038 tag scan
counter).
*1
If the error occurred in all screens, please check the addresses set via functions which
operate in all screens, such as System Data Area, Alarm, Global D-script, Global Win-
dow and Sampling (Historical Trend Graph). To check the addresses, from [System
Settings Window] in GP-Pro EX, select [Peripheral List] and see [List of Device/PLC
Management Addresses].
)
GP-Pro EX Reference Manual “5.14.6 [System Settings] Setting Guide n [Peripheral List] Set-
If the error occurred in specific screens, please check the addresses via functions which
operate in specific screens.
Continued
Error No.
Error Message
Cause and Solution
Countermeasure
