Bailey INFI 90 INPPR01 Instruction

Contents

Bailey INFI 90 INPPR01 Instruction Manual pdf 35 page image

OPERATING PROCEDURESPLANT LOOP TO PLANT LOOP TRANSFER MODULE LEDs AND CONTROLS4 - 2 I-E96-624A®Status LEDThe Status LED is a red/green LED that displays the operatingstatus of the PPT. It has five possible states. Table 4-1 lists themeaning of the status LED states. Refer to Section 5 for correc-tive action if the status LED indicates that an operating errorexists.CPU LEDsDuring normal operation, the CPU LEDs keep a count of theinternal and external messages that pass through the PPT. If acommunication error occurs, these LEDs display an error codeand the Status LED turns RED. Refer to Table 5-1 for a list ofCPU LED error codes and corrective action.Memory LEDsThere are two Memory LEDs. MEM LED 2 is on while the mod-ule is correcting single bit errors. Both LEDs are on when atwo-bit error or a complete memory failure occurs.Stop PushbuttonPush the stop pushbutton before removing a PPT from theModule Mounting Unit. The stop pushbutton causes the fol-lowing actions to occur:1. Allows any NVM write in progress to complete.2. Forces control from a primary to a secondary PPT in redun-dant configurations.Reset PushbuttonPressing the reset pushbutton causes:1. Restoration of PPT to power-up values after a halt.Table 4-1. PPT Status LED StatesLED State MeaningOff No power to the PPT.Solid Green The PPT is in the EXECUTE Mode.Flashing Green (once per second) The PPT is in the EXECUTE Mode and detects a NVM checksumerror.Flashing Green (4 times per second) The PPT is in the CONFIGURE or ERROR Mode.Solid Red The PPT diagnostics detect a hardware failure or configurationproblem. CPU LEDs display an error code when the status LEDis red.