
CTI 2500 Installation and Operation Guide V2.8 8
CHAPTER 5 CONTROLLER MEMORY.........................................................................47
5.1 Overview ...................................................................................................................... 47
5.2 User Program RAM.....................................................................................................47
5.3 Flash Memory..............................................................................................................49
5.4 High Speed DRAM ...................................................................................................... 49
CHAPTER 6 SCAN TIMELINE .......................................................................................51
6.1 Scan Overview............................................................................................................. 51
6.2 PLC Scan Types.......................................................................................................... 53
6.3 Scan Modes................................................................................................................. 54
CHAPTER 7 COMMUNICATIONS..................................................................................57
7.1 Overview ...................................................................................................................... 57
7.2 Serial Communications................................................................................................ 57
7.3 USB Communications .................................................................................................57
7.4 Ethernet Communications........................................................................................... 58
CHAPTER 8 SYSTEM RESTART OPTIONS .................................................................63
8.1 Overview ...................................................................................................................... 63
8.2 Restart Options............................................................................................................63
8.3 System Restart Table.................................................................................................. 64
CHAPTER 9 TROUBLESHOOTING...............................................................................65
9.1 Troubleshooting Aids...................................................................................................65
9.2 Startup Errors............................................................................................................... 65
9.3 Fatal Errors .................................................................................................................. 66
9.4 Non-Fatal Errors .......................................................................................................... 70
CHAPTER 10 UPDATING FIRMWARE............................................................................73
10.1 Overview...................................................................................................................... 73
10.2 Serial Port Method....................................................................................................... 73
10.3 SD Card Method.......................................................................................................... 77
10.4 Firmware Update Status Codes.................................................................................. 78
10.5 Firmware Update Errors.............................................................................................. 79
CHAPTER 11 USER PROGRAM FLASH STORAGE......................................................81
11.1 Overview...................................................................................................................... 81
11.2 Using Flash Memory.................................................................................................... 82
11.3 Power-On Start Operation........................................................................................... 83
11.4 Restrictions When the Program Source is Flash........................................................ 83
APPENDIX A. - ERROR CODES ......................................................................................85
Startup Error Codes................................................................................................................ 85
Fatal Error Codes ................................................................................................................... 86
Task Code Errors.................................................................................................................... 88
APPENDIX B. – SYSTEM STATUS WORDS ...................................................................91
APPENDIX C. – IP ADDRESS INFORMATION................................................................99
IP Address Nomenclature ...................................................................................................... 99
Selecting IP Addresses ........................................................................................................100