C h a p t e r 1 2 Tr o u b l e s h o o t i n g1 2 - 2 512_12.3.7.2 ERROR LED Indicators Blinking Every 0.5 SecondsError codes:ErrorCode Description Solution16#1500 Remote module communication timeout Make sure the module is properly connected to the CPUmodule and turn the modules on again.16#1502 Incorrect parameters Check the parameter in HWCONFIG. Download theparameter again.16#1503 Extension module communication timeout Make sure the module is properly connected to the CPUmodule and turn the modules on again.16#1505The actual placement of the extensionmodule is not consistent with theconfigurations.Check if the setting in HWCONFIG is consistent with theactual placement.12.3.7.3 ERROR LED Indicators Blinking Every 0.2 SecondsThis happens when the 24 VDC power supply for the remote module is not sufficient. Check the power supply. If thepower supply is normal, remove the extension module from the CPU module and then check if the SCM remote moduleis out of order. Error codes:ErrorCode Description Solution16#130324VDC power supply is not sufficient andthen recovered from low-voltage for lessthan 10 ms.Check whether the 24 V power supply to the module isnormal.12.3.8 Troubleshooting for AS01DNET ModulesRefer to sections 12.4.6 and 12.4.7 for more details.12.4 Error Codes and LED Indicators for CPU ModulesA. Columnsa. Error code: If an error occurs in the system, an error code is generated.b. Description: The description of the errorc. CPU status: If the error occurs, the CPU stops running, keeps running, or shows the status you defined for theerror. Stop: The CPU stops running when the error occurs. Continue: The CPU keeps running when the error occurs.d. LED indicator status: If the error occurs, the LED indicator is ON, OFF, or blinks. ERROR: System error
