5.2 Controller Interface
Unified Controller nv series type1 light Communication Interface Module (CF622) Instruction Manual
35
(2) Command
The command is used to do handshake to send/receive data and error information between
CF622 and the user’s application. The user's application writes data according to the transfer state.
When CF622 detects the unhealthy of the controller, CF622 clears the command to 0.
Bit
15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 0
Command
TX_
ST
RX_
ST
Default 0
0
R / W R /W
R /W
Table5-2 Command details
Bit
Abbreviation
Name
Description
15 TX_ST
Transmit
start
1:
Transmit data write start
0:Transmit data write complete
11 RX_ST
Read
start
1:Receive data read start
0:Receive data read complete
5.2.1.2 CF611 mode
Figure 5-15 shows the I/O variable structure at CF611 mode. Details of Status and Command are
same as normal mode.
Offset word
0
Status
1
Reserve
2
Command
3
Reserve
Figure 5-15 I/O variable structure at CF611 mode
Содержание CF622
Страница 20: ...Chapter 1 Introducing CF622 6F8C1583 1 6 ...
Страница 26: ...Chapter 2 Names and Functions of the Parts 6F8C1583 12 ...
Страница 38: ...Chapter 4 Installation and wiring 6F8C1583 24 ...
Страница 70: ...Chapter 6 Maintenance and Inspection 6F8C1583 56 6 ...
Страница 74: ...Chapter 7 Troubleshooting 6F8C1583 60 7 ...
Страница 78: ...Chapter 8 Usage Constraints 6F8C1583 64 8 ...
Страница 83: ...69 Appendix B Outside Dimensions B 1 CF622 module 70 B 2 CF622 implemented in the base unit 71 ...
Страница 86: ...Appendix B Outside Dimensions 6F8C1583 72 ...
Страница 87: ...73 73 Appendix C Related Products C 1 Accessories 74 C 2 Recommended communication cables 74 ...
Страница 89: ...75 75 Appendix D ASCII code chart ...
Страница 106: ...Appendix E Sample programs 6F8C1583 92 E ...
Страница 108: ...1583 1 1605 ...