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284
Auxiliary Area and CIO Area Allocations (Modbus-RTU Slave Mode)
Section 9-3
Response
Reading 19 Bits from
CIO 0001.04 to
CIO 0002.06
Note
Unused bits are filled with zeros.
Note
The subscript numbers in the shaded boxes indicate the ON/OFF (1/0) status
of the bits that are read.
Read Discrete Inputs
Function
Reads multiple bits from the CIO Area of I/O memory.
Command
Response
Reading 19 Bits from
CIO 0001.04 to
CIO 0002.06
Note
Unused bits are filled with zeros.
Length
Data
Function Code
1 byte
01 hex
Byte Count
1 byte
N
Coil Status
n byte
n = N or N+1
Request
Response
Data
Data
Function Code
01 hex
Function Code
01 hex
Starting Address (H)
00 hex
Byte Count
03 hex
Starting Address (L)
14 hex
Coil Status 27 to 20
CD hex
Quantity of Coils (H)
00 hex
Coil Status 35 to 28
6B hex
Quantity of Coils (L)
13 hex
Coil Status 38 to 36
05 hex
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CIO 0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CIO 1
31
1
30
0
29
1
28
1
27
1
26
1
25
0
24
0
23
1
22
1
21
0
20
1
19
18
17
16
CIO 2
47
46
45
44
43
42
41
40
39
38
1
37
0
36
1
35
0
34
1
33
1
32
0
CIO 3
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
Length
Data
Function Code
1 byte
02 hex
Starting Address
2 bytes
0000 to 13FF hex
Quantity of Coils
2 bytes
1 to 3E8 hex (1 to 1000)
Length
Data
Function Code
1 byte
02 hex
Byte Count
1 byte
N (See note.)
Coil Status
n byte
n = N or N+1
Request
Response
Data
Data
Function Code
02 hex
Function Code
02 hex
Starting Address (H)
00 hex
Byte Count
03 hex
Starting Address (L)
14 hex
Coil Status 27 to 20
CD hex
Quantity of Coils (H)
00 hex
Coil Status 35 to 28
6B hex
Quantity of Coils (L)
13 hex
Coil Status 38 to 36
05 hex
Summary of Contents for SYSMAC CJ1W-SCU21-V1
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi...
Page 89: ...60 Basic Operating Procedure Section 1 9...
Page 151: ...122 RS 232C and RS 422A 485 Wiring Section 3 4...
Page 173: ...144 Host Link Function for Replacing Existing PLCs Section 4 6...
Page 223: ...194 Enhanced Protocol Macro Functions Section 5 6...
Page 277: ...248 Communications Frames Section 6 8...
Page 291: ...262 Basic Operating Procedure in No protocol Mode Section 7 4...
Page 301: ...272 Auxiliary Area and CIO Area Allocations Section 8 3...
Page 391: ...362 Introduction Appendix A...
Page 421: ...392 CompoWay F Master Protocol Appendix B...
Page 513: ...484 E5 K Digital Controller Read Protocol Appendix F...
Page 571: ...542 E5ZE Temperature Controller Write Protocol Appendix I...
Page 587: ...558 E5 J Temperature Controller Protocol Appendix J...
Page 627: ...598 ES100 Digital Controller Protocol Appendix K...
Page 661: ...632 V500 V520 Bar Code Reader Protocol Appendix M...
Page 697: ...668 3Z4L Laser Micrometer Protocol Appendix N...
Page 717: ...688 Visual Inspection System Protocol Appendix O...
Page 755: ...726 V600 V620 ID Controller Protocol Appendix P...
Page 763: ...734 Hayes Modem AT Command Protocol Appendix Q...
Page 767: ...738 Changing Communications Port Settings Using STUP 237 Appendix R...
Page 781: ...752 Revision History...