Rockwell-automation 900 Temperature Controller Communications Function Manual de usuario Pagina 18
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Publication 900-UM004D-EN-E - July 2010
2-2 Bulletin 900 Communications Procedures 900-TCx (CompoWay/F)
Response Frame
• The end code is returned for each command frame that was addressed
to the local node.
• No response will be returned unless the frame contained all elements up
to the ETX and BCC.
• “Error Detection Priority” indicates the priority when two or more
errors occur simultaneously.
Table 2.2
End
Code
Name Description Error
Detection
Priority
00 Normal
completion
The command ended normally without error. None
0F FINS
command
error
The specified FINS command could not be executed.
The FINS response code should indicate why the
command could not be executed.
8
10 Parity error The sum total of bits whose received data is 1 does
not match the set value of Communications Parity.
2
11 Framing
error
Stop bit is 0. 1
12 Overrun
error
An attempt was made to transfer new data when the
reception data was already full.
3
13 BCC error The calculated BCC value is different from the
received BCC value.
5
14 Format error • The command text contains characters other than
0 to 9, and A to F. This error is not applicable to
the echoback test. (For details, see Refer
to Echoback Test on page 2-17)
• No SID and command text. Or, no command text
• MRC/SRC not included in command text
7
16 Sub-address
error
• Illegal (unsupported) sub-address
• No sub-address, SID and command text
• Sub-address less than two characters, and no SID
and command text
6
18 Frame
length error
The received frame exceeds the fixed (supported)
number of bytes.
4
Command Text BCC
ETX
1 1
222
End CodeSub-addressNode No.
STX
1
- Functions 1
- Important User Information 2
- European Communities (EC) 3
- Directive Compliance 3
- Table of Contents 5
- -ii Table of Contents 6
- Safety Precautions 7
- Conventions Used in This 7
- How to Read Display Symbols 8
- About Communications Methods 9
- Communications 10
- Specifications 10
- Transmission procedure 10
- Interface 11
- Communications Parameter 14
- Communication Parameters 15
- Setting Communications 16
- 900-TCx (CompoWay/F) 17
- Response Frame 18
- Communications Data 19
- Example of End Code 19
- Structure of Command Text 21
- Type Code (Variable Type) 22
- Addresses 22
- Number of Elements 23
- List of Services 23
- Detailed Description of 24
- Services 24
- Response code 25
- Write to Variable Area 26
- Bit Position 28
- Response Code 28
- Read Controller Attributes 31
- Read Controller Status 32
- Echoback Test 33
- Test data 34
- Operation Commands 35
- Response Code List 42
- 3-2 Communications Data 44
- Communications Data 3-3 45
- 3-4 Communications Data 46
- Communications Data 3-5 47
- 3-6 Communications Data 48
- Communications Data 3-7 49
- 3-8 Communications Data 50
- Communications Data 3-9 51
- 3-10 Communications Data 52
- Communications Data 3-11 53
- 3-12 Communications Data 54
- Status Structure 55
- Bit position 56
- Table 3.4 Status Details 57
- Table 3.5 Status 2 Contents 58
- Data Format 59
- CRC-16 Calculation Example 60
- Error Codes 62
- Function List 63
- Variable Area 64
- Detailed Description of the 66
- Write Variable Area 69
- Example Command and Response 72
- Write variable address 73
- Command: 75
- Response: 75
- Variable Area (Setting 83
- Range) List 83
- Advanced 84
- Setting 84
- Table 5.6 89
- Four-byte mode Two-byte mode 89
- Figure 5.1 Status Structure 96
- Figure 5.3 Status 2 Structure 97
- Table 5.11 Status Details 98
- Table 5.12 Status 2 Details 99
- Back Cover 103
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