Rockwell-automation 1746-NR4 SLC RTD/Resistance Input Module User Manu Manuel d'utilisateur Page 111
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Publication 1746-UM008B-EN-P - December 2006
Application Examples 111
Supplementary Example
This example provides the application setup, channel configuration,
and program setup.
Application Setup (Four Channels °C
↔
°F)
Device Configuration for Displaying Many RTD Outputs shows how to
display the temperature of several different RTD units at one
annunciator panel. A selector switch (I:2/0) allows the operator to
choose between displaying data in °C and °F. Each of the displays is a
4-digit, 7-segment LED display with the last digit representing tenths
of a degree. The displays have dc-sinking inputs and use a BCD data
format.
Device Configuration for Displaying Many RTD Outputs
Chilled H
2
O Pipe In
Steam Pipe In
Bath
200 Ω Platinum RTD (385)
Chilled H
2
O Pipe Out
Steam Pipe Out
Bath
Display Panel
5C
5F
.
Chilled H
2
OSteam
. .
200 Ω Platinum RTD (385)
1000 Ω Platinum RTD (385)
Ambient
.
(4) 1746-OB16
1746-IB8
1746-NR4
SLC 5/04
Ambient Temperature
604 Ω Nickel/Iron (518)
Selector Switch (I:2/0)
- SLC 500 1
- RTD/Resistance 1
- Input Module 1
- Important User Information 2
- Summary of Changes 3
- New Information 3
- 4 Summary of Changes 4
- Table of Contents 5
- 6 Table of Contents 6
- Use This Manual 7
- Who Should Use This 7
- Purpose of This Manual 7
- Contents of this Manual 8
- Common Techniques Used 9
- 10 Preface 10
- Overview 11
- 12 Overview 12
- RTD Compatibility 13
- 14 Overview 14
- Overview 15 15
- Hardware Overview 16
- System Overview 18
- System Operation 19
- LED Indicator Status 20
- 22 Overview 22
- Quick Start Guide 23
- Procedures 24
- Insert the Module 25
- Wire the Module 25
- Configure Your I/O 28
- Output Image Detail 29
- 30 Quick Start Guide 30
- Input Image Detail 31
- Monitoring Status 32
- Install and Wire the Module 33
- NR4 Power Requirements 34
- Module Location in Chassis 35
- General Considerations 37
- Module Installation and 38
- Install the Module 39
- Remove the Module 39
- Terminal Wiring 40
- IMPORTANT 41
- Cable Examples 46
- Calibration 47
- Single-point Calibration 48
- Module ID Code 51
- Module Addressing 52
- O : 4 . 2 53
- I : 3 . 6 53
- Channel Filter Frequency 54
- Selection 54
- Effective Resolution 55
- 10 Hz Filter Notch Frequency 56
- 50 Hz Filter Notch Frequency 57
- 60 Hz Filter Notch Frequency 57
- 250 Hz Filter Notch Frequency 57
- Scanning Process and 58
- Channel Timing 58
- Scanning Cycle 60
- Channel Turn-on, Turn-off 61
- Response to Slot Disabling 61
- Input Response 62
- Output Response 62
- Procedure 64
- Enter the Configuration Data 65
- Scaled–for–PID 68
- Temperature Counts 69
- -200 °C (-328 °F) -32,768 69
- +630 °C (1166 °F) +32,767 69
- Scaling Examples 71
- 1746-NR4 73
- Scaling Select (Bits 13-14) 78
- User-set Scaling 79
- Limit Scale Words 80
- Channel Data Word 81
- Channel Status Checking 82
- Bits Define 83
- These bit settings 83
- Indicate this 83
- 1514131211109876543210 83
- Input Type Status (Bits 0…3) 84
- Excitation Current (Bit 12) 85
- Broken Input Error (Bit 13) 85
- Out-of-range Error (Bit 14) 86
- Configuration Error (Bit 15) 86
- Ladder Programming Examples 87
- Initial Programming 88
- Configuration Word Setup 89
- Copy File Data Flow 89
- Programming Procedure 90
- Dynamic Programming 91
- Verify Channel 92
- Configuration Changes 92
- Interface to the PID 93
- Instruction 93
- Use the Proportional 95
- Counts Data Format with 95
- Monitor Channel Status 96
- Invoke Autocalibration 97
- Introduction 99
- Module Operation vs 99
- Channel Operation 99
- Power Turn-on Diagnostics 100
- Channel Diagnostics 100
- LED Indicators 100
- Error Codes 102
- Out-of-range Detection 103
- Troubleshooting Flowchart 105
- Replacement Parts 106
- Contact Rockwell 106
- Automation 106
- Application Examples 107
- Channel Configuration 108
- Program Listing 109
- Program to Convert °F to BCD 110
- Supplementary Example 111
- Degrees Selector Switch 114
- Specifications 117
- 118 Specifications 118
- Module Accuracy 119
- 120 Specifications 120
- Specifications 121 121
- 122 Specifications 122
- RTD Standards 123
- 124 RTD Standards 124
- Configuration Worksheet 125
- I/O Configuration 131
- 132 I/O Configuration 132
- I/O Configuration 133 133
- 6. Click OK 134
- Glossary 135
- 136 Glossary 136
- Glossary 137 137
- 138 Glossary 138
- 140 Index 140
- Index 141 141
- 142 Index 142
- How Are We Doing? 143
- BUSINESS REPLY MAIL 144
- Rockwell Automation 148
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