Fuji Electric ALPHA5 Smart, User Manual

Page: 489 / 636

CHAPTER 13 RS-485 COMMUNICATIONS
13.1 Modbus RTU Communications ························································· 13-2
13.1.1 Settings for Servo Amplifier ·························································· 13-2
13.1.2 Communication Specifications ······················································ 13-4
13.1.3 Transmission Protocol ································································ 13-5
13.1.4 Sample Wiring with Host Controller·············································· 13-32
13.1.5 Communications Procedures ····················································· 13-33
13.2 PC Loader Communications ·························································· 13-39
13.2.1 Station Number ······································································· 13-39
13.2.2 Communication Specifications ···················································· 13-39
13.2.3 Transmission Protocol ······························································ 13-40
13.2.4 Description of Transmission Data ················································ 13-41
13.2.5 Status Data ············································································ 13-41
13.2.6 Command List ········································································ 13-42
13.2.7 Command Transmission Specifications ········································ 13-42
13.2.8 Communications Starting Procedure ············································ 13-43
13.2.9 Regular Communications Procedure ············································ 13-43
13.2.10 Protocol Level Error ································································ 13-44
13.2.11 Wiring (CN3) ········································································· 13-45
13.2.12 Communications ···································································· 13-47
13