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189
Selecting Communications Instructions
Section 6-2
Note
1.
SR 253 to SR 255 cannot be written at the source node, even if they are
specified by the RECV instruction’s beginning receive word at the source
node.
2.
For details on extended DM Area, refer to the operation manual for the PLC
model that is being used.
6-2
Selecting Communications Instructions
Note
CMND cannot be used with C200HX/HG/HE PLCs.
DM Area
DM 0000 to DM 6655
Extended DM Area
EM 0000 to EM 6143 (See note 2.)
Area
Range
Do you want to easily read from
or write to the I/O memory area?
Do you want to intermittently read
from a memory area?
Aside from memory areas, do you
want to write the following kinds of
data?
PLC internal clock
File Memory
Do you want to read the following
kinds of data?
PLC model
PLC status
Cycle time
Messages
Errors
Forced set/reset status
Do you want to change the PLC's
operating mode?
Do you want to force set/reset bit
status?
Use SEND and RECV.
YES
Use CMND. (See note.)
YES
YES
YES
YES
Содержание C200HW-CLK21
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Страница 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Страница 13: ...xiv ...
Страница 19: ...xx ...
Страница 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Страница 69: ...44 Message Service Procedure Section 2 2 ...
Страница 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Страница 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Страница 261: ...236 Response Codes Section 6 7 ...
Страница 297: ...272 Message Delay Times Section 8 4 ...
Страница 353: ...328 Handling Precautions Section 9 6 ...
Страница 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Страница 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Страница 369: ...344 Standard Models Appendix A ...
Страница 391: ...366 Using the Relay Terminal Block Appendix C ...
Страница 397: ...372 Index ...
Страница 401: ...376 Revision History ...