![background image](http://html1.mh-extra.com/html/omron/cp1l-12-2007/cp1l-12-2007_operation-manual_742083630.webp)
595
Connections to Serial Communications Option Boards
Appendix F
1:N, 4-wire Connections from RS-422A/485 to RS-422A/485 Ports
• Communications Mode: 1:N NT Link
Note
(1) RS-422A/485 Option Board settings:
Terminating resistance ON, 4-wire.
(2) The terminating resistant setting shown above is an example for the NT631/NT631C. The setting
method varies with the PT. Refer to the manual for you PT for details.
1:N, 2-wire Connections from RS-422A/485 to RS-422A/485 Ports
• Communications Mode: 1:N NT Link
Note
(1) RS-422A/485 Option Board settings:
Terminating resistance ON, 2-wire.
(2) The terminating resistant setting shown above is an example for the NT631/NT631C. The setting
method varies with the PT. Refer to the manual for you PT for details.
CPU Unit
Pin
Signal
Signal
PT
Terminal block or
D-sub connector
FG
Terminal block
RS-422A
/485
Interface
Short bar
Signal
PT
Terminal block or
D-sub connector
FG
RS-422A
/485
interface
(See note 2.)
RS-422A
/485
Option Board
CPU Unit
Pin
Signal
Signal
PT
FG
D-sub, 9-pin
connector (male)
RS-422A
/485
Interface
Short bar
Signal
PT
Terminal block
(See note 2.)
RS-422A
/485 Option
Board
RS-422A
/485
Interface
FG
Содержание CP1L - 12-2007
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 428: ...395 Clock Section 6 9...
Страница 429: ...396 Clock Section 6 9...
Страница 523: ...488 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...496 Replacing User serviceable Parts Section 10 2...
Страница 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...634 Index...
Страница 671: ...636 Revision History...