Table of Contents (continued)
ix
CHAPTER 9. RS485/MODBUS-RTU COMMUNICATION 9-1
9.1 I
NTRODUCTION 9-1
9.1.1 Features 9-1
9.1.2 Connection Guide for Modbus-RTU Communication with PC, PLC and RS232/485 9-1
9.1.3 Before Installation 9-1
9.2 S
PECIFICATION 9-2
9.2.1 Performance Specification 9-2
9.2.2 Hardware Specification 9-2
9.2.3 Communication Specification 9-2
9.2.4 Installation 9-2
9.2.5 Communication Parameters 9-3
9.3 O
PERATION 9-3
9.3.1 Operating Steps 9-3
9.4 C
OMMUNICATION PROTOCOL (MODBUS-RTU) 9-4
9.5 P
ARAMETER CODE LIST 9-5
9.5.1 Common area address 0x0006 9-7
9.5.2 SG operating status in Address E, Common area 9-8
9.6 T
ROUBLESHOOTING 9-9
APPENDIX A- UL MARKING I
APPENDIX B- RELATED PARAMETERS III
APPENDIX C - DECLARATION OF CONFORMITY V