Rockwell-automation 1746-NR4 SLC RTD/Resistance Input Module User Manu Manual de usuario Pagina 74
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Publication 1746-UM008B-EN-P - December 2006
74 Channel Configuration, Data, and Status
The Channel Data Word Resolution for RTDs table shows the data
resolution provided by the 1746-NR4 for RTD input types using the
various data formats.
The Channel Data Word Resolution for 150 Ω Resistance Input table
and the Channel Data Word Resolution for 500 Ω, 1000 Ω, and 3000
Ω Resistance Inputs table shows the data resolution provided by the
1746-NR4 for resistance input types using the various data formats.
Channel Data Word Resolution for RTDs
RTD Input Type
Data Format (Bits 4 and 5)
(1)
Engineering Units x 1
Engineering Units
x 10
Scaled-for-PID
Proportional Counts
(Defaults)
°C °F °C °F °C °F °C °F
100 Ω Platinum 385 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0641 °C/step 0.1154 °F/step 0.0160 °C/step 0.0288 °F/step
200 Ω Platinum 385 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0641 °C/step 0.1154 °F/step 0.0160 °C/step 0.0288 °F/step
500 Ω Platinum 385 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0641 °C/step 0.1154 °F/step 0.0160 °C/step 0.0288 °F/step
1000 Ω Platinum 385 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0641 °C/step 0.1154 °F/step 0.0160 °C/step 0.0288 °F/step
100 Ω Platinum 3916 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0507 °C/step 0.0912 °F/step 0.0127 °C/step 0.0288 °F/step
200 Ω Platinum 3916 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0507 °C/step 0.0912 °F/step 0.0127 °C/step 0.0288 °F/step
500 Ω Platinum 3916 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0507 °C/step 0.0912 °F/step 0.0127 °C/step 0.0288 °F/step
1000 Ω Platinum 3916 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0507 °C/step 0.0912 °F/step 0.0127 °C/step 0.0288 °F/step
10 Ω Copper 426 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0220 °C/step 0.0396 °F/step 0.0051 °C/step 0.0099 °F/step
120 Ω Nickel 618
(2)
0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0220 °C/step 0.0396 °F/step 0.0051 °C/step 0.0099 °F/step
120 Ω Nickel 672 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0208 °C/step 0.0374 °F/step 0.0052 °C/step 0.0093 °F/step
604 Ω Nickel Iron 518 0.1 °C/step 0.1 °F/step 1 °C/step 1 °F/step 0.0183 °C/step 0.0330 °F/step 0.0046 °C/step 0.0082 °F/step
(1)
When ohms are selected, the temperature-units selection (bit 8) is ignored. Analog input data is the same for either °C or °F selection.
(2)
Actual value at 0 °C (32 °F) is 100Ω per DIN standard.
Channel Data Word Resolution for 150 Ω Resistance Input
Resistance Input Type
Data Format (Bits 4 and 5)
Engineering Units x 1 Engineering Units x 10 Scaled-for-PID
Proportional Counts
(Defaults)
Ohms Ohms Ohms Ohms
150 Ω 0.01 Ω / step 0.1 Ω / step 0.0092 Ω / step 0.0023 Ω / step
- 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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