Chapter 5 Setting with the Engineering Tool
6F8C1583
46
5.2.3 Operation
Description
CF622 and user's application perform handshake to communicate received/sent data using
command/status I/O variables.
The following shows the sequences of the receiving data and sending data.
■
Receive Processing Operation
--- Normal mode (operation mode mode1 or 2), CF611 mode
Trans data
(3)
RX_RDY
(6)
RX_CMP
(1)
RX_ERR
CF622 Control
User's application
(4)
MREAD instruction
RX_ST
(2)
(5)
Receive data
Receive data
Figure 5-19
Receive processing operation (mode 1, mode 2)
(1) When CF622 receives delimiter (mode1) or configured length data (mode2), RX_CMP is set to 1.
(2) Set RX_ST to 1 from user’s application.
(3) RX_CMP is reset to 0, RX_RDY is set to 1.
(4) Read received data from receive data area using MREAD instruction.
(5) Reset RX_ST to 0 from user’s application.
(6) RX_RDY is reset to 0.
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 ...