
Writing Bypass Parameters............................................................................................................. 370
Enter Command .............................................................................................................................. 370
C.8 Communication Errors .....................................................................................................371
C.9 BACnet Protocol Implementation Conformance Statement..........................................372
D. MEMOBUS/MODBUS COMMUNICATIONS........................................................ 375
D.1 MEMOBUS/Modbus Configuration ..................................................................................376
D.2 Communication Specifications........................................................................................377
D.3 Connecting to a Network ..................................................................................................378
Network Cable Connection.............................................................................................................. 378
Wiring Diagram for Multiple Connections........................................................................................ 379
Network Termination ....................................................................................................................... 379
D.4 MEMOBUS/Modbus Setup Parameters ...........................................................................380
MEMOBUS/Modbus Serial Communication.................................................................................... 380
D.5 Bypass Operations by MEMOBUS/Modbus....................................................................382
Observing the Bypass Operation .................................................................................................... 382
D.6 Communications Timing...................................................................................................383
Command Messages from Master to Bypass ................................................................................. 383
Response Messages from Bypass to Master.................................................................................. 383
D.7 Message Format ................................................................................................................384
Message Content ............................................................................................................................ 384
Slave Address ................................................................................................................................. 384
Function Code................................................................................................................................. 384
Data................................................................................................................................................. 384
Error Check ..................................................................................................................................... 384
D.8 Message Examples ...........................................................................................................386
Reading Drive MEMOBUS/Modbus Register Contents .................................................................. 386
Loopback Test................................................................................................................................. 386
Writing to Multiple Registers............................................................................................................ 387
D.9 MEMOBUS/Modbus Data Table........................................................................................388
Command Data ............................................................................................................................... 388
Monitor Data.................................................................................................................................... 389
Broadcast Messages....................................................................................................................... 398
Fault Trace Contents....................................................................................................................... 398
Bypass Fault Codes ........................................................................................................................ 400
Alarm Register Contents ................................................................................................................. 400
D.10 Enter Command.................................................................................................................401
Enter Command Behavior............................................................................................................... 401
D.11 Communication Errors .....................................................................................................402
MEMOBUS/Modbus Error Codes.................................................................................................... 402
Slave Not Responding..................................................................................................................... 402
E. APOGEE FLN NETWORK PROTOCOL.............................................................. 403
E.1 APOGEE FLN Set-Up.........................................................................................................404
Z1000 Bypass Parameter Settings for APOGEE FLN Communications......................................... 404
E.2 Connecting to a Network ..................................................................................................405
Network Cable Connection.............................................................................................................. 405
Wiring Diagram for Multiple Connections........................................................................................ 406
Table of Contents
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YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual
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