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General| Series | MELSEC-A |
|---|---|
| Model | A2ASCPU-S1 |
| CPU Type | A2ASCPU |
| Program Capacity | 14K Steps |
| Power Supply | 24 V DC |
| Operating Temperature | 0 to 55 °C |
| Program Memory | 14K Steps |
| Storage Temperature | -25 to 75°C |
| Humidity | 5 to 95% RH (non-condensing) |
| Communication | RS-232, RS-422 |
| Weight | 0.8 kg |
| Power Supply Options | Single-phase AC 100-240 V |
Precautions related to the design of the system to ensure safety.
Precautions for installing the programmable controller system and its components.
Precautions related to wiring the power cables and I/O wires of the system.
Precautions for daily and periodic maintenance and inspection of the programmable controller.
Provides precautions for configuring the system hardware and software.
Details the performance specifications for CPU modules.
Explains the CPU module's operation processing steps from power-on to END processing.
Describes CPU operation processing in RUN, STOP, PAUSE, and STEP-RUN modes.
Explains how the CPU module processes operation upon an instantaneous power failure.
Details the self-diagnostics functions of the CPU module for abnormality detection.
Explains parameters for memory allocation, functions, and device ranges.
Lists parameters for memory allocation, functions, and device ranges.
Details memory capacity settings for programs, registers, and comments.
Explains the concept of fail-safe circuits for system reliability.
Provides instructions for wiring power cables and I/O wires.
Lists recommended daily inspection items for the base unit and modules.
Details periodic inspection items to be conducted every six months to a year.
Provides instructions and guidelines for replacing the battery.
Explains the basic three points for effective troubleshooting.
Provides a flowchart for troubleshooting when the POWER LED is OFF.
Provides a flowchart for troubleshooting when the RUN LED is turned OFF.
Provides a flowchart for troubleshooting when the RUN LED is flickering.
Provides a flowchart for troubleshooting when the ERROR LED is turned ON.
Provides a flowchart for troubleshooting when the ERROR LED is flickering.
Provides a flowchart for troubleshooting when the output load does not turn ON.
Provides a flowchart for troubleshooting when the program cannot be written.
Provides a flowchart for troubleshooting when the CPU module is not started up.
Lists error messages, codes, causes, and corrective actions for specific CPU modules.
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