Specifications

SQ: 1-38
RS3: Service Quick Reference Guide
Troubleshooting
Troubleshooting I/O
This section covers I/O troubleshooting:
D General I/O problems
D Analog Card Cages
D FlexTerms
D Field Interface cards.
D RBL controller and cards.
These procedures assume that you have found all red fault LEDs and that
they have been corrected before you proceed to the troubleshooting
process.
CAUTION
Use a grounded wrist strap with a built-in one megohm
resistor for your safety and the protection of static-sensitive
circuits. All cards should be placed on a grounded static
mat or be placed in a static protection envelope.
Potential problem areas include:
D Bad fuses (in and out -- no indicators)
D Bad card
D Bad Controller card
D Bad cable
D Bad software
D Bad firmware
D Bad I/O Block or ControlBlock configuration
D Bad field device
CAUTION
Remove power from the Multiplexer FlexTerm before
installing or removing any cards.