Omron CJ2 User Manual

6-3
6 Troubleshooting
CJ2 CPU Unit Hardware User’s Manual
6-1 CPU Unit Errors
6
6-1-3 Checking Detailed Status
Use the following procedure to read the error status.
1. Connect the CX-Programmer online.
2. Double-click Error Log in the project tree in the main window. The PLC Error Window will be dis-
played.
3. Click the Errors Tab. The current errors will be displayed on the Errors Tab Page.
You can check detailed error status using information registered in the Auxiliary Area. The following
error details are registered.
• Error Flags: The Auxiliary Area contains flags that indicate the type of error. There are error flags for
various types of error.
• Error Information: The Auxiliary Area contains words that provide detailed information on current
errors. Error information is provided for various types of error.
• Error Code: The error code assigned to the current error is stored in word A400 regardless of the
type of error. If two or more errors occur at the same time, the highest
(most serious) error code will be stored in A400.
If the error status could not be checked when the error occurred, it can be checked by reading error log
data. The following information is stored in the error log.
• Error code (This is the same error code as is stored in word A400.)
• Error information
• Time of occurrence
Checking Error Status with the CX-Programmer
6-1-3 Checking Detailed Status
6-1-4 Reading Error Log Information

Omron CJ2 Specifications

General

Model	CJ2
Manufacturer	Omron
Type	Programmable Logic Controller (PLC)
CPU Units	Multiple models available (e.g., CJ2M, CJ2H)
Number of I/O Points	Up to 2, 560 points
Communication Ports	Ethernet/IP, EtherCAT, USB, Serial
Expansion	Yes, via I/O Units and Special I/O Units
I/O Control Method	Cyclic Scan, Interrupt
Programming Language	Ladder diagram, structured text, function block diagram, sequential function chart, instruction list
Built-in I/O	Available on some models (e.g., CJ2M)
Ethernet Port	Yes, 1 port (depending on CPU Unit)
Serial Ports	RS-232C, RS-422/485 (configurable)
USB Port	Yes (for programming and monitoring)
Operating Temperature	0°C to 55°C
Storage Temperature	-25 to 70°C
Humidity	10 to 95% RH (non-condensing)
Vibration Resistance	10 to 57 Hz, Amplitude: 0.075 mm, 57 to 150 Hz, Acceleration: 1 G, X, Y, and Z directions, 80 min each
Power Supply Voltage	24 VDC or 100 to 240 VAC (depending on CPU Unit)