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484
Troubleshooting
Section 9-2
9-2-6
Other Errors
Communications Errors
■
CPU Unit Indicators
POWER
Lit
RUN
Lit
ERR/ALM
---
INH
---
PRPHL
---
BKUP
Not lit
Probable cause
Possible remedy
An error has occurred in the communica-
tions between the peripheral port and con-
nected device.
Confirm that the peripheral port settings in
the PLC Setup are correct.
Check the USB cable and replace it if neces-
sary.
An error has occurred in the communica-
tions between the serial port and connected
device.
Confirm that the serial port 1/2 settings in
the PLC Setup are correct. Check the cable
wiring. If a host computer is connected,
check the serial port settings and program in
the host computer.
POWER
RUN
INH
PRPHL
BKUP
ERR/AL
Summary of Contents for CP1L - 12-2007
Page 3: ...iv...
Page 9: ...x...
Page 13: ...xiv TABLE OF CONTENTS...
Page 21: ...xxii...
Page 33: ...xxxiv Conformance to EC Directives 6...
Page 65: ...32 Function Blocks Section 1 5...
Page 428: ...395 Clock Section 6 9...
Page 429: ...396 Clock Section 6 9...
Page 523: ...488 Troubleshooting Unit Errors Section 9 4...
Page 531: ...496 Replacing User serviceable Parts Section 10 2...
Page 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...634 Index...
Page 671: ...636 Revision History...