Model FL3112
35
7.7.24 Overrun
Errors
A read indicates the number of Overrun Errors that occurred in the slave device. The
maximum count is 255 and then the counter will rollover to zero and begin counting again.
Note: An overrun error occurs when the next received byte of data tries to overwrite an
existing received data byte which has not been processed. Therefore, the next received
byte of data is lost. This can be controlled by implementing the proper DCS or PLC Error
Handling Timing Settings (i.e. Reply Timeout Setting, Delay Time, and Number of Retries)
and proper Baud Rate Settings.
7.7.25
Noise Flag Errors
A read indicates the number of Noise Flag Errors that occurred in the slave device. The
maximum count is 255 and then the counter will rollover to zero and begin counting again.
7.7.26 Framing
Errors
A read indicates the number of Framing Errors that occurred in the slave device. The
maximum count is 255 and then the counter will rollover to zero and begin counting again.
7.7.27 SCI
Errors
A read indicates the number of SCI (Serial Communications Interface) Errors that occurred
in the slave device. The Maximum count is 255 and then the counter will rollover to zero
and being counting again.
7.7.28
Clear Comm Errors
Writing a 1 to the bit activates the Clear Comm Errors function which resets all of the
Modbus Comm Error counters to zero. The function is active momentarily and will reset
automatically after being used.
Function Bit
(LSB) Access
Enable
1
Read/Write
Disable
0
Read/Write
