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520
Auxiliary Area Allocations by Function
Appendix C
Communications
Networks
Network Communications Information
Information When Automatically Allocating Communications Ports
Name
Address
Description
Access
Updated
Communications Port
Enabled Flags
A202.00 to
A202.07
ON when a network instruction or background execution
can be executed with the corresponding port number.
Bits 00 to 07 correspond to communications ports 0 to 7.
Read-only
Communications Port Com-
pletion Codes
A203 to
A210
These words contain the completion codes for the corre-
sponding port numbers when network instructions have
been executed. The corresponding word will be cleared
when background execution has been completed.
Words A203 to A210 correspond to communications
ports 0 to 7.
Read-only
Communications Port Error
Flags
A219.00 to
A219.07
ON when an error occurred during execution of a net-
work instruction.
OFF when a normal response is returned.
Bits 00 to 07 correspond to communications ports 0 to 7.
Read-only
Name
Address
Description
Access
Updated
Network Communications
Port Allocation Enabled Flag
A202.15
ON when there is a communications port available for
automatic allocation.
Note
Use this flag to confirm whether a communica-
tions port is available for automatic allocation
before executing communications instructions
when using 9 or more communications instruc-
tions simultaneously.
Read-only
First Cycle Flags after Net-
work Communications Fin-
ished
A214.00 to
A214.07
Each flag will turn ON for just one cycle after communi-
cations have been completed. Bits 00 to 07 correspond
to ports 0 to 7. Use the Used Communications Port Num-
ber stored in A218 to determine which flag to access.
Note
These flags are not effective until the next cycle
after the communications instruction is executed.
Delay accessing them for at least one cycle.
Read-only
First Cycle Flags after Net-
work Communications Error
A215.00 to
A215.07
Each flag will turn ON for just one cycle after a communi-
cations error occurs. Bits 00 to 07 correspond to ports 0
to 7. Use the Used Communications Port Number stored
in A218 to determine which flag to access. Determine the
cause of the error according to the Communications Port
Completion Codes stored in A203 to A210.
Note
These flags are not effective until the next cycle
after the communications instruction is executed.
Delay accessing them for at least one cycle.
Read-only
Network Communications
Completion Code Storage
Address
A216 to
A217
The completion code for a communications instruction is
automatically stored at the address with the I/O memory
address given in these words.
Place this address into an index register and use indirect
addressing through the index register to read the com-
munications completion code.
Read-only
Used Communications Port
Numbers
A218
Stores the communications port numbers used when a
communications instruction is executed using automatic
communication port allocations.
0000 to 0007 hex: Communications port 0 to 7
Read-only
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...