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13. TROUBLESHOOTING............................................................................................................. 13- 1 to 13-18
13.1 Verification When a Trouble Occurs ..................................................................................................13- 1
13.2 Troubleshooting When the "ERR" LED on the Master Station Is Flashing.......................................13- 4
13.3 Error Codes.........................................................................................................................................13- 6
13.4 LED Display Status.............................................................................................................................13-12
13.4.1 When data link is normal..............................................................................................................13-12
13.4.2 When a cable is disconnected.....................................................................................................13-12
13.4.3 When a cable is shorted ..............................................................................................................13-13
13.4.4 When the link is stopped at the master station ...........................................................................13-13
13.4.5 When power supply to a remote I/O station is turned off............................................................13-14
13.4.6 When the power supply to a remote device station is turned off................................................13-14
13.4.7 When the power supply to the local station (programmable controller CPU) is turned off........13-15
13.4.8 When the station numbers are duplicate.....................................................................................13-15
13.4.9 When the transmission speed is set incorrectly..........................................................................13-16
13.4.10 When the switch setting is changed during data link................................................................13-16
13.4.11 When data link is started with the switch set outside the range...............................................13-17
13.4.12 When the remote I/O station is not set by the parameter (i.e., is set as reserved) .................13-17
13.4.13 When the remote device station is not set by the parameter (i.e., is set as reserved)............13-18
13.4.14 When the local station is not set by the parameter (i.e., is set as reserved) ...........................13-18
14. OVERVIEW (FUNCTION VERSION B OR LATER) .............................................................. 14- 1 to 14- 2
15. FUNCTIONS (FUNCTION VERSION B OR LATER)............................................................. 15- 1 to 15-20
15.1 List of Functions ..................................................................................................................................15- 1
15.2 Parameter Registration Function........................................................................................................15- 1
15.2.1 Network parameters.....................................................................................................................15- 2
15.2.2 Automatic refresh parameters .....................................................................................................15- 3
15.3 Automatic Refresh Function ...............................................................................................................15- 3
15.4 Scan Synchronous Function...............................................................................................................15- 4
15.4.1 Synchronous mode ......................................................................................................................15- 4
15.4.2 Asynchronous mode ....................................................................................................................15- 5
15.5 Standby Master Function....................................................................................................................15- 6
15.5.1 Operation overview ......................................................................................................................15- 6
15.5.2 Settings on using the standby master function ...........................................................................15- 7
15.5.3 Link special relays/registers (SB, SW) relating to the standby master function ........................15- 8
15.5.4 Notes on using the standby master function...............................................................................15- 9
15.5.5 Program example on using the standby master function ...........................................................15-10
15.6 Dedicated Instructions ........................................................................................................................15-11
15.7 Communication Instructions (Software Version J and Later)............................................................15-12
15.8 Remote I/O Net Mode.........................................................................................................................15-13
15.8.1 Features .......................................................................................................................................15-13
15.8.2 Software version corresponding to master module and its CPU................................................15-13
15.8.3 Set item.........................................................................................................................................15-13
15.8.4 Link scan time ..............................................................................................................................15-14
15.8.5 Precautions...................................................................................................................................15-14