ElectricalTroubleshooting GuideIRB6400 M94APage 2 - 20Computer System2.4.9 Remote I/O Board DSQC 239Symptom Description Source of FaultA: 32 yellow LEDs indicate Robot computer board,the status for the first 16 rear plane, internalinputs and 16 outputs. fault in the unit, cabling,or system parameters.LEDsRED GREENF ACTIVE (OK)OFF ON Normal indication, Node Adapterfully operationalON ON/OFF Node adapter board not properlyinitiated, probable cause:- Board faulty- Incorrect I/O-type parameterON/OFF OFF No communication with hostprocessor, probable cause:- Incorrect parameters for RIO-board- Incorrect wiring- Host processor faultON/OFF BLINK Bad Communication, probablecause:- Host Processor in Programmode- Reversed connectionsThe serial I/O interface, DSQC 239 (RIO), is intendedto be used for communication with Allen-Bradley PLCequipment. The board is equipped with 32 yellow LEDs(which indicate the status of the first 16 inputs andoutputs on the front panel), a red F-LED and a greenLED, "ACTIVE".If the green LED is not lit and the red one goes OFF, theboard's special communication circuit is probably faulty.If replaced, there are no adjustments or proceduresrequired.DSQC239F OK1234567891011121314151617181920212223242526272829303132AB C2 SLOTS WIDEArtisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
