OMRON SYSMAC CS Series CS1G/H-CPU  H Programmable Controller

Backup: User program and parameter area data will be automatically backed up to the built-in flash memory of the CPU unit. The simple backup function can backup all data (programs, parameters, I/O memory, specific unit/board data) to the storage card by pressing the power switch of the storage card.

Fault diagnosis: The system records up to 20 errors (including user-defined FAL/FALS errors) in the error log (A100-A199), including error codes and occurrence times. The auxiliary area provides rich status indicators for diagnosis.

7. Security and Compliance

The manual prominently emphasizes safety precautions, including:

External safety circuit: Emergency stop, interlock, limit and other safety measures must be implemented in the PLC external circuit.

Output failure protection: Considering that the output unit may remain ON due to relay fusion or transistor damage, the external circuit design must be able to cope with such risks.

Battery error handling: The data in the DM, EM, and HR areas are backed up by the battery, and the user program should monitor the battery error flag (A40204) and take measures when the voltage is low.

EC Directive Compliance: The CS series PLC complies with EMC Directive and Low Voltage Directive, but needs to be installed in the control cabinet and appropriate noise suppression measures taken.