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341
Serial Communications
Section 6-1
Note
Serial PLC Links cannot be used on serial ports 1 and 2 at the same time. If
one port is set as a Serial PLC Link slave or master, it will not be possible to
set the other port for a Serial PLC Link. A PLC Setup error will occur if an
attempt is made to set both ports for Serial PLC Links.
Configuration
1:N Connections between CP1H/CJ1M CPU Units (8 Nodes Maximum)
1:1 Connections between CP1H/CJ1M CPU Units
Specifications
Data Refresh Methods
The following two methods can be used to refresh data.
• Complete link method
8 nodes maximum
CP1H CPU Unit (Polling Unit)
RS-422A/485 Option Board
RS-422A/485
Shared data
CP1H CPU Unit
(Polled Unit)
CP1H CPU Unit
(Polled Unit)
CJ1M CPU Unit
(Polled Unit)
CP1H CPU Unit
(Polled Unit)
CP1H CPU Unit
(Polling Unit)
RS-232C or RS-422A/485
Shared data
CP1H CPU Unit
(Polled Unit)
CJ1M CPU Unit
(Polling Unit)
RS-232C or RS-422A/485
Shared data
Item
Specifications
Applicable serial
ports
Serial port 1 or 2. Both ports cannot be used for PLC Links at
the same time. If both ports are set for PLC Links (either as
polling node or polled node), a PLC Setup setting error (non-
fatal error) will occur and the PLC Setup Setting Error Flag
(A40210) will turn ON.
Connection method
RS-422A/485 or RS-232C connection via RS-422A/485 or
RS-232C Option Board.
Allocated data area
Serial PLC Link Words:
CIO 3100 to CIO 3199 (Up to 10 words can be allocated for
each CPU Unit.)
Number of Units
9 Units max., comprising 1 Polling Unit and 8 Polled Units (A
PT can be placed on the same network in an 1:N NT Link, but
it must be counted as one of the 8 Polled Units.)
Link methods (data
refresh methods)
Complete link method or Polling Unit link method
Содержание CP1H-CPU - 05-2006
Страница 1: ...OPERATION MANUAL CP1H CPU Unit SYSMAC CP Series CP1H X40D CP1H XA40D CP1H Y20DT D Cat No W450 E1 02...
Страница 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Страница 3: ...iv...
Страница 11: ...xii TABLE OF CONTENTS...
Страница 15: ...xvi...
Страница 19: ...xx...
Страница 31: ...xxxii Conformance to EC Directives 6...
Страница 71: ...40 Function Blocks Section 1 5...
Страница 133: ...102 Computing the Cycle Time Section 2 7...
Страница 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Страница 411: ...380 Clock Section 6 8...
Страница 519: ...488 Replacing User serviceable Parts Section 10 2...
Страница 527: ...496 Standard Models Appendix A...
Страница 535: ...504 Dimensions Diagrams Appendix B...
Страница 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Страница 659: ...628 PLC Setup Appendix G...
Страница 665: ...634 Index work words 159 write protection 370...
Страница 667: ...636 Revision History...