Reading Bypass Parameters........................................................................................................... 374
Writing Bypass Parameters............................................................................................................. 374
Enter Command .............................................................................................................................. 374
C.8 Communication Errors .....................................................................................................375
C.9 BACnet Protocol Implementation Conformance Statement..........................................376
D. MEMOBUS/MODBUS COMMUNICATIONS........................................................ 379
D.1 MEMOBUS/Modbus Configuration ..................................................................................380
D.2 Communication Specifications........................................................................................381
D.3 Connecting to a Network ..................................................................................................382
Network Cable Connection.............................................................................................................. 382
Wiring Diagram for Multiple Connections........................................................................................ 383
Network Termination ....................................................................................................................... 383
D.4 MEMOBUS/Modbus Setup Parameters ...........................................................................384
MEMOBUS/Modbus Serial Communication.................................................................................... 384
D.5 Bypass Operations by MEMOBUS/Modbus....................................................................386
Observing the Bypass Operation .................................................................................................... 386
D.6 Communications Timing...................................................................................................387
Command Messages from Master to Bypass ................................................................................. 387
Response Messages from Bypass to Master.................................................................................. 387
D.7 Message Format ................................................................................................................388
Message Content ............................................................................................................................ 388
Slave Address ................................................................................................................................. 388
Function Code................................................................................................................................. 388
Data................................................................................................................................................. 388
Error Check ..................................................................................................................................... 388
D.8 Message Examples ...........................................................................................................390
Reading Drive MEMOBUS/Modbus Register Contents .................................................................. 390
Loopback Test................................................................................................................................. 390
Writing to Multiple Registers............................................................................................................ 391
D.9 MEMOBUS/Modbus Data Table........................................................................................392
Command Data ............................................................................................................................... 392
Monitor Data.................................................................................................................................... 393
Broadcast Messages....................................................................................................................... 402
Fault Trace Contents....................................................................................................................... 402
Bypass Fault Codes ........................................................................................................................ 404
Alarm Register Contents ................................................................................................................. 404
D.10 Enter Command.................................................................................................................405
Enter Command Behavior............................................................................................................... 405
D.11 Communication Errors .....................................................................................................406
MEMOBUS/Modbus Error Codes.................................................................................................... 406
Slave Not Responding..................................................................................................................... 406
E. APOGEE FLN NETWORK PROTOCOL.............................................................. 407
E.1 APOGEE FLN Set-Up.........................................................................................................408
Z1000 Bypass Parameter Settings for APOGEE FLN Communications......................................... 408
E.2 Connecting to a Network ..................................................................................................409
Network Cable Connection.............................................................................................................. 409
Table of Contents
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YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
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