Omega CN3800 COM Protocol free download

File name CN3800_COM_Protocol.pdf

CN3800 Series Protocol Manual for RS232C / RS422A CONTENTS [1] Introduction ...3 [2] Specifications ...4 [3] Connection ...5 1. RS232C ...5 2. RS422A ...6 [4] Setting Requirements for Communication ...7 1. Communication Parameter Setting ...7 2. Operation Mode Setting ...8 [5] Communication Check ... 10 1. Preparation ... 10 2. Circuit Check ... 10 3. Poor Connection ... 11 [6] Establishment and Abandonment of Data Link ... 12 1. Establishment of Data Link ... 12 2. Abandonment of Data Link ... 13 [7] Communication Format ... 13 1. READ Command Format ... 13 2. WRITE Command Format ... 14 3. Control Codes ... 14 4. Check Code ... 14 5. Positive Acknowledgment and Negative Acknowledgment ... 15 6. Time Out, Etc. ... 16 -1- [8] Details of Communication Commands ... 17 1. Common Specifications ... 17 2. Operation Mode Related Commands [01] ... 27 3. Display (LED) Related Commands [D1~D4] ... 28 4. Monitor Screen Related Commands [M1~M3] ... 30 5. Execution Parameter Screen Related Commands [E1~E5] ... 32 6. Program Data Screen Related Commands [P1, S1~S6] ... 34 7. Control Data Screen Related Commands [C1~C3] ... 37 8. KEY Lock Screen Related Commands [K1~K3] ... 38 9. Initial Data Screen Related Commands [I1~I9] ... 39 [9] Appendices ... 45 1. ASCII Code Table ... 45 2. Circuit Check Sample Program ... 46 -2- [1] Introduction The operating instructions in this copy describe the communication interface which is an optional function prepared for the Program Controller CN3800 Series. For the functions and features of the controller unit itself, refer to the Operating Instructions of the controller unit. Two types of communication interfaces, RS232C