Rockwell-automation 1788 NetLinx Media Checker Users Manual Bedienungsanleitung

10Preparing the MediaChecker for Use1788-UM002A-US-P – April 2000Calibrating the MediaChecker to a CableCables from different batches or manufacturers

Preparing the MediaChecker for Use111788-UM002A-US-P – April 20002. Turn the rotary switch to TEST, LENGTH, or WIREMAP.3. Press A; then press E repea

12Key to Twisted Pair Displays1788-UM002A-US-P – April 2000Key to Twisted Pair DisplaysTable 6 describes the symbols used for DeviceNet,DH+/RIO, and E

The Test Function (TEST)131788-UM002A-US-P – April 2000The Test Function (TEST)The TEST function tests the attached cable and indicates“PASS” or “FAIL

14The Test Function (TEST)1788-UM002A-US-P – April 2000Table 7. Failures Detected for Each Cable TypeFailures Detected DeviceNet DH+/RIO Ethernet Cont

The Test Function (TEST)151788-UM002A-US-P – April 2000Twisted Pair Cable Test ResultsImportant: If you suspect inaccurate length readings,calibrate t

16The Test Function (TEST)1788-UM002A-US-P – April 2000Table 8. DeviceNet Test Results (with Cable ID)1Display Failure DescriptionShort across the dat

The Test Function (TEST)171788-UM002A-US-P – April 2000Table 8. DeviceNet Test Failures (with Cable ID) (cont.)1Display Failure DescriptionShort to th

18The Test Function (TEST)1788-UM002A-US-P – April 2000Table 9. DeviceNet Test Failures (without Cable ID)Display Failure DescriptionThe MediaChecker

The Test Function (TEST)191788-UM002A-US-P – April 2000Table 9. DeviceNet Test Failures (without Cable ID) (cont.)Display Failure DescriptionThe Media

2Safety Information1788-UM002A-US-P – April 2000The MediaChecker tests for incorrect pairing (split pairs),miswires, and shorted and open wires on all

20The Test Function (TEST)1788-UM002A-US-P – April 2000Table 9. DeviceNet Test Failures (without Cable ID) (cont.)Display Failure DescriptionThe Media

The Test Function (TEST)211788-UM002A-US-P – April 2000Coaxial Cable Test ResultsImportant: If you suspect inaccurate length readings,calibrate the Me

22The Test Function (TEST)1788-UM002A-US-P – April 2000Table 10. ControlNet Test FailuresDisplay Failure DescriptionThe MediaChecker detects a cable l

The Test Function (TEST)231788-UM002A-US-P – April 2000LENGTHWIRE MAPTESTSETUPENTEROFF80 FeetLENGTHWIRE MAPTESTSETUPENTEROFF70 Feet0Ω SHORT0.5Ω SHORTM

24Testing the Wire Map (WIRE MAP)1788-UM002A-US-P – April 2000Testing the Wire Map (WIRE MAP)Using the MediaChecker’s WIRE MAP function and theCable I

Testing the Wire Map (WIRE MAP)251788-UM002A-US-P – April 2000When the MediaChecker detects something on the farend of the cable, but cannot determine

26Testing the Wire Map (WIRE MAP)1788-UM002A-US-P – April 2000Table 11. DeviceNet Wire Map Failures (with Cable ID)Display FailureDescriptionMiswire (

Measuring Cable Length (LENGTH)271788-UM002A-US-P – April 2000Measuring Cable Length (LENGTH)Important: If you suspect inaccurate length readings,cali

28Measuring Cable Length (LENGTH)1788-UM002A-US-P – April 20004. Press E to check the cable selection.The MediaChecker displays the cable selection fo

Calculating Trunk, Drop, or Tap Lengths291788-UM002A-US-P – April 2000Calculating Trunk, Drop, or Tap LengthsWhen you test a cable that has drops or t

Safety Information31788-UM002A-US-P – April 2000ATTENTION: To avoid possible fire, electric shock, personal injury, or damage to the MediaChecker:• D

30Calculating Trunk, Drop, or Tap Lengths1788-UM002A-US-P – April 2000ControlNet Length CalculationsMeasured tap lengths depend on whether the taps ar

Calculating Trunk, Drop, or Tap Lengths311788-UM002A-US-P – April 2000Table 12. Measured Tap Lengths for ControlNetCablesNumberof Taps Terminated Tap*

32Calculating the Distance to a Short1788-UM002A-US-P – April 2000Table 12. Measured Tap Lengths for ControlNetCables (cont.)Numberof TapsTerminated T

Calculating the Distance to a Short331788-UM002A-US-P – April 2000Short across the shield and any other wire: TheMediaChecker reports the short, but c

34Calculating the Distance to a Short1788-UM002A-US-P – April 2000Table 13. DeviceNet and DH+/RIO Cable ResistancesCable TypeData Pair(H, L)Power Pair

Setup Selections351788-UM002A-US-P – April 2000Setup SelectionsIn setup mode you can select cable characteristics andcustomize the MediaChecker’s oper

36Maintenance1788-UM002A-US-P – April 2000MaintenanceGeneralPeriodically wipe the case with a damp cloth anddetergent; do not use abrasives or solvent

Maintenance371788-UM002A-US-P – April 2000Table 15. Troubleshooting the MediaCheckerSymptom 1: Display goes blank.Action Result ExplanationDisplay is

38Maintenance1788-UM002A-US-P – April 2000Performing a Self-TestWhen the MediaChecker is on, it periodically tests someof its internal circuits. If a

Maintenance391788-UM002A-US-P – April 2000• To run a self-test on Ethernet functions, connectan Ethernet patch cord to the RJ45-to-DB9adapter. Use th

4Getting Acquainted1788-UM002A-US-P – April 2000Getting AcquaintedDisplay, Switches, and ConnectionsSETUPENTER45231MediaChecker1788-MCHKRaan01f.epsFig

40Maintenance1788-UM002A-US-P – April 2000Parts and AccessoriesTable 16. Parts and AccessoriesDescription Part No.RA (Resistive Adapter) cable identif

Specifications411788-UM002A-US-P – April 2000SpecificationsThese specifications assume the MediaChecker wascalibrated using 100 ft (30 m) (or more) of

42Specifications1788-UM002A-US-P – April 2000Table 18. ControlNet Cable Test SpecificationsCable Length Distance to ShortCable1RangeAccuracy Resolutio

Specifications431788-UM002A-US-P – April 2000Table 20. DH+/RIO Cable Test SpecificationsCable Length Distance to ShortCable1RangeAccuracy Resolution2A

44Specifications1788-UM002A-US-P – April 2000PowerTwo AA size 1.5 V alkaline batteriesBattery type: ANSI/NEDA-15A or IEC-LR6Low battery indicated on t

Getting Acquainted51788-UM002A-US-P – April 2000LENGTHWIRE MAPTESTOFF2341aan02f.epsFigure 2. Rotary SwitchTable 3. Rotary Switch PositionsItem Descrip

6Getting Acquainted1788-UM002A-US-P – April 2000STP UTP/FTP COAX123aan03f.epsFigure 3. ConnectionsTable 4. ConnectionsItem DescriptionA Standard 9-pin

Getting Acquainted71788-UM002A-US-P – April 2000• A continuous, varying-pitch tone indicates theMediaChecker is connected to an active cable andshoul

8Preparing the MediaChecker for Use1788-UM002A-US-P – April 2000Preparing the MediaChecker for UseATTENTION: To reduce wear on theMediaChecker connect

Preparing the MediaChecker for Use91788-UM002A-US-P – April 2000To set up the MediaChecker for the desired cable, do thefollowing:Important: The numbe