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6 Operating Instructions
AC800 Series Intelligent Machine Controller Hardware User Guide
displays to warn the user that the BIOS self-test codes have not been sent. You can return to the
startup interface by pressing the Back key.
Program and system error
■ Error window
When the display stays on the programming interface page or the main page, if an error occurs in the
program or system, the screen will show the error code and detailed information. You can return to the
previous interface through the Back key. If there are multiple errors, you can use the Up and Down keys to
view the full information of an error, and use the Enter key to display the next error.
Special error Er.22 indicates that the communication between the display and the PLC is
disconnected. It is due to system crash or communication timeout between the screen and
board daemon process caused by an endless loop in an application program. In this case,
the display cannot obtain and display PLC information, and cannot be operated by keys. The
user can restart the computer and use the key combination Back+Enter on the programming
interface page to forcibly modify the APP's next startup status to "stop". When the error is
removed, the error information will be cleared.
Er. 22
System:Comm.Tim
e out between PLC
& Panel
■ Errors menu
You can view the detailed information of current errors of the PLC through the Errors menu. If there are
multiple errors, you can use the "Up" and "Down" keys to view the full information of an error, and use the
Enter key to switch to the next error (for details, see Appendix 1).
1ˊ圬坑坉坒
2ˊ圶坈块块坌坑坊坖
3ˊ在坕坕坒坕坖
4ˊ圳坈坕坉坒坕坐坄坑坆坈
Er.95
Modbus TCP:
Communicaon
meout
If the PLC is free from any error, it will display "NO ERROR!!".
4 Performance
You can use the Performance menu to view the status parameters related to PLC performance, including
the CPU core occupancy rate and memory occupancy rate.
CPU0: 23%
CPU1: 10%
MEM: 30%