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260
Receiving Explicit Messages
Section 9-2
Command Block
Note A body format of either 8 bits or 16 bits is possible.
Response Block
Parameters
Service code (command, response): IF Hex is specified for commands. For
responses, the highest bit will turn ON and 9F Hex will be returned.
Class ID (command): Always C4 (2F).
The class ID depends on the unit version. The class ID is C4 for unit version
2.0, and 2F for unit version 1.0.
Instance ID (command): The memory area to which the data is written is
specified as shown in the following table.
Address L, Address H (command): The address of the first word to which
the data is written is specified in hexadecimal as shown below.
Address L: The lower 2 digits when the first word address is displayed in 4-
digit hexadecimal.
Address H: The higher 2 digits when the first word address is displayed in 4-
digit hexadecimal.
Write data (response): The specified area and write data is returned in order
from word L (lower byte: bits 0 to 7) to word H (higher byte: bits 8 to 15).
Important Points
The actual address L, address H, and number of write data bytes that can be
specified depends on the model of the CPU Unit, and the data area being
written. Do not exceed the boundary of the data areas for the PLC you are
using.
Address L
Address H
Word data H
Word data L
Word data H
Write data (200 bytes max.)
Word data L
(*)
C4
(2F)
(*)
1F
Service
Code
Class ID
Instance ID
The class ID depends on the unit version.
Version 2.0: The class ID is C4.
Version 1.0: The class ID is 2F.
Service Code
9F
Instance ID (Hex)
CPU Unit memory area
for write
Word range
01
CIO
0000 to 6143
03
DM
D00000 to D32767
04
WR
W000 to W511
05
HR
H000 to H1535
08 to 20
EM, banks 0 to 18
En_00000 to En_32767
(n: 0 to 18)
Содержание CJ2H-CPU6 - REV 02-2010
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Страница 38: ...12 Network Configurator Overview Section 1 5...
Страница 58: ...32 Selecting the Network Devices Section 2 3...
Страница 116: ...90 Auxiliary Area Data Section 4 5...
Страница 222: ...196 Message Communications Errors Section 7 6...
Страница 364: ...338 Using the Backup Tool Section 13 3...
Страница 402: ...376 CS CJ series Ethernet Unit Function Comparison Appendix A...
Страница 404: ...378 Ethernet Network Parameters Appendix B...
Страница 406: ...380 TCP Status Transitions Appendix C...
Страница 452: ...426 Precautions for Using Windows XP Vista or Windows 7 Appendix G...
Страница 460: ...434 Index...
Страница 462: ...436 Revision History...
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