Rockwell-automation 900 Temperature Controller Communications Function Manuel d'utilisateur Page 23
- Page / 103
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Publication 900-UM004D-EN-E - July 2010
Bulletin 900 Communications Procedures 900-TCx (CompoWay/F) 2-7
Number of Elements
The number of elements is expressed in 2-byte hexadecimal code. The range
that can be specified for the number of elements depends on the command.
Refer to Detailed Description of Services on page 2-8.
List of Services
Note: No commands will be accepted and no responses will be returned when
a memory error (RAM error) has occurred or the controller is initializing (until
the controller recognizes the process value after the power is turned ON).
Table 2.6
MRC SRC Name of Service Process
01 01 Read from variable
area
This service reads from variable areas.
01 02 Write to variable area This service writes to variable areas.
01 04 Composite Read from
Variable Area
This service reads from the variable area in
the order specified by the parameters.
01 13 Composite Write to
Variable Area
This service writes to the variable area in the
order specified by the parameters.
05 03 Read Controller
Attributes
This service reads the model number and
communications buffer size.
06 01 Read controller status This service reads the run status of the
controller.
08 01 Echoback test This service carries out the echoback test.
30 05 Operation instructions This service carries out run/stop,
communications writing, write mode, save
RAM data, AT (auto-tuning) execution/cancel,
multi-SP, move to protect function, move to
setup area 1 and software reset.
- 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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