Omron CJ1W-PRT21 - Page 17

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CJ-series PROFIBUS Slave Unit Operation Manual for NJ-series CPU Unit (W510)
2-1-2 Indicators ................................................................................................................................... 2-2
2-1-3 Switch Settings .......................................................................................................................... 2-3
2-1-4 PROFIBUS Connector ............................................................................................................... 2-4
2-2 Installing the PROFIBUS-DP Slave Unit ............................................................................... 2-5
2-2-1 System Configuration Precautions ............................................................................................ 2-5
2-2-2 Mounting .................................................................................................................................... 2-5
2-2-3 Handling Precautions ................................................................................................................. 2-6
2-2-4 External Dimensions .................................................................................................................. 2-7
2-3 Network Installation ................................................................................................................ 2-8
2-3-1 Network Structure ...................................................................................................................... 2-8
2-3-2 Bus Termination ....................................................................................................................... 2-10
2-3-3 PROFIBUS Cable Connector ...................................................................................................2-11
2-3-4 Shielding Precautions ...............................................................................................................2-11
Section 3 Data Exchange with the CPU Unit
3-1 Input and Output Data ............................................................................................................ 3-2
3-2 I/O Data Mapping .................................................................................................................... 3-3
3-3 I/O Data Format ....................................................................................................................... 3-5
3-4 PROFIBUS Startup Data ......................................................................................................... 3-6
3-5 Data Exchange with the CPU Unit ......................................................................................... 3-8
3-5-1 Data Flow ................................................................................................................................... 3-8
3-5-2 Accessing From the User Program ...........................................................................................3-11
3-6 Device Variables for CJ-series Unit (Software Switches, Statuses) ................................ 3-15
3-6-1 Software Switches (*_SwCmd) ................................................................................................ 3-15
3-6-2 Status Flags (*_SlvSta) ............................................................................................................ 3-16
3-7 Device Variables for CJ-series Unit (Configuration) ......................................................... 3-20
3-7-1 Slave Parameter Data (*_SlvParamSta) .................................................................................. 3-21
3-7-2 Slave Output Data (*_SlvOutSta) ............................................................................................. 3-22
3-8 CPU Status Information ....................................................................................................... 3-28
Section 4 Troubleshooting and Maintenance
4-1 Error Indicators ....................................................................................................................... 4-2
4-1-1 Determining Operating Status from the Indicators ..................................................................... 4-2
4-1-2 Errors During Initial Processing ................................................................................................. 4-3
4-1-3 Errors During Normal Operation ................................................................................................ 4-3
4-2 Standard and Extended Diagnostics .................................................................................... 4-5
4-3 Event Logs .............................................................................................................................. 4-6
4-3-1 Overview of the Event Logs ....................................................................................................... 4-6
4-3-2 Error Table ................................................................................................................................. 4-6
4-3-3 Error Descriptions ...................................................................................................................... 4-8
4-4 Maintenance and Replacement ........................................................................................... 4-10
4-4-1 Cleaning ................................................................................................................................... 4-10
4-4-2 Inspection ................................................................................................................................ 4-10
4-4-3 Replacing Faulty Units ..............................................................................................................4-11
4-4-4 Addition/Replacement of Units on the PROFIBUS Network .....................................................4-11