PFEA111-20 3BSE028140R0020 controller

Correct any invalid data in the configuration for proper module operation. When the configuration contains a valid parameter set, all the bits in the configuration word will be clear. This does not indicate that the configuration is valid for the user application. Make sure each parameter is set correctly for the specific application. If the APP, BP ACT and OK LEDs blink at a rate of every one-second, this indicates a serious problem with the module. Call ProSoft Technology support to arrange for repairs.

Troubleshooting Use the following troubleshooting steps if you encounter problems when the module is powered up. If these steps do not resolve your problem, please contact ProSoft Technology Technical Support.

Clearing a Fault Condition

 Typically, if the OK LED on the front of the module turns red for more than ten seconds, a hardware problem has been detected in the module, or the program has exited. To clear the condition, follow these steps: 1 Turn off power to the rack 2 Remove the card from the rack 3 Verify that all jumpers are set correctly 4 If the module requires a Compact Flash card, verify that the card is installed correctly 5 Re-insert the card in the rack and turn the power back on 6 Verify the configuration data being transferred to the module from the SLC processor. If the module's OK LED does not turn green, verify that the module is inserted completely into the rack. If this does not cure the problem, contact ProSoft Technology Support.

Steps to take

This indicates that backplane transfer operations are failing. Connect to the module’s Configuration/Debug port to check this. To establish backplane communications, verify the following items: ƒ The processor is in Run mode. ƒ The backplane driver is loaded in the module. ƒ The module is configured for read and write block data transfer. ƒ The ladder logic handles all read and write block situations. ƒ The module is configured in the processor. OK LED remains red The program has halted or a critical error has occurred. Connect to the Configuration/Debug port to see if the module is running. If the program has halted, turn off power to the rack, remove the card from the rack and re-insert the card in the rack, and then restore power to the rack