7.1 FAULT ALARM AND COUNTERMEASURES .................... 150
7.2 COMMON FAULT AND RESOLUTION ............................. 165
CHAPTER 8 C220/C420 SERIES SERIAL PORT
COMMUNICATION PROTOCOL .................................. 167
8.1 ABOUT PROTOCOL ....................................................... 167
8.2 APPLICATION MODE ..................................................... 167
8.3 BUS STRUCTURE .......................................................... 168
8.4 PROTOCOL SPECIFICATION ........................................... 168
8.5 COMMUNICATION FRAME STRUCTURE ......................... 169
8.6 CYCLICAL REDUNDANCY CHECK ................................ 173
8.7 CMD AND STATUS ...................................................... 175
APPENDIX:FUNCTION PARAMETER TABLE ........... 178