TM 5-3895-374-24-1 Chapter 9 Troubleshooting The Following Probable Cause Recommended Action Error Exists 1. Refer to chapter 7 and follow the start-up Initial CPU Factory procedures Condition 2. Clear processor memory to get rid of the flashing CPU FAULT LED 1. Monitor Status File Word S:6 for major error code 2. Refer to either the Hand-Held Terminal User Manual (Catalog Number 1747-NP002) or the Advanced Programming Software User Manual Hardware/Software (Catalog Number 1747-NM002) for error codes and CPU Major Major Fault additional troubleshooting Information Fault Detected 3. Remove hardware/software condition causing fault Erratic repetitive power cycling can 4. Clear Status File S 1/13 major error bits, it set cause a processor major hardware 5. Clear Status File S 5 minor error bits, II set 6. Clear Status File S 6 major error code (optional) 7. Attempt a processor Run mode entry If unsuccessful, repeal recommended action steps above The Following Probable Cause Recommended Action Error Exists 1. Monitor program file online and identify forced I/O 2. Disable appropriate forces and test system System does User Forced I/O conditions again not operate per Disabling ladder logic Operation Refer to either the Hand-Held Terminal User Manual (Catalog Number 1747-NP002) or the Advanced Programming Software User Manual (Catalog Number 1747-NM002) Refer to the following key to determine the status of the LED indicators Indicates the LED Is OFF Indicates the LED is ON Indicates the LED is FLASHING Status of LED does not matter The RUN LED on the 5/01 processor is actually labeled "PC RUN"-Also, the 5/01 processor does not have a COMM LED (page 3-440)