Rockwell-automation 1746-NI16V SLC 500 Analog Input Modules User Manua User Manual Page 74
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Publication 1746-UM001A-US-P
6-4 Module Diagnostics and Troubleshooting
LED State Tables
Module Status LED
All LEDs
Module Status LED (Green)
The module status LED is used to indicate module-related diagnostic
or operating errors. These
non-recoverable errors
may be detected
at power-up or during module operation. Once in a module error
state, the 1746-NI16 module no longer communicates with the SLC
processor. Channel states are disabled, and data words are cleared.
Failure of any diagnostic test results in a non-recoverable error and
requires the assistance of your local distributor or Allen-Bradley.
If Module Status
LED is:
Indicated
condition:
Corrective action:
On
Proper Operation No action required.
Off
Module Fault Cycle power. If condition persists, call your
local distributor or Allen-Bradley for
assistance.
If Module
Status LED
is:
And
Channel
Status LED
is:
Indicated Condition: Corrective action:
On
On
Channel Enabled No action required.
Blinking
Open-Circuit Condition To determine the exact error, check the error
bits in the input image bits (15 through 13).
Check the channel configuration word for
valid data. Make sure that the data format is
indicated correctly in status bits. Class 1 data
format status bits are bits 5 and 4. Class 3
data format status bits are bits 6-4. See the
“Troubleshooting Flowchart” on page 6-6 and
Chapter 5 for more information.
Out-of-Range Condition
Channel Configuration
Error
Off
Power-Up No action required.
Channel Not Enabled No action required. For an example showing
how to enable a channel, see Chapter 2,
Quick
Start
, or Chapter 7,
Application Examples
.
- SLC 500™ Analog 1
- Input Modules 1
- Important User Information 2
- Table of Contents 3
- Table of Contents ii 4
- Table of Contents iii 5
- Table of Contents iv 6
- Who Should Use this 7
- Purpose of this Manual 7
- Contents of this Manual 8
- Related Documentation 9
- Common Techniques Used 10
- Allen-Bradley Support 10
- Overview 11
- Hardware Features 12
- System Overview 13
- Module Operation 14
- Module Calibration 14
- Required Tools and 15
- Equipment 15
- Procedures 16
- (Installation and 17
- 01 0 0010 00 0 00 00 00 18
- (Application Examples) 20
- 1112131415 910 8 67450123 21
- (Channel Configuration 21
- Data and Status) 21
- 12 415 14 13 11 10 9 87 65 32 22
- 0 0111 10 0 00 00 00 22
- Installation and Wiring 23
- Environnements dangereux 24
- Electrostatic Damage 24
- 1746-NI16 Power 25
- Requirements 25
- Module Location in Chassis 25
- Fixed Chassis Example 27
- Compliance to European 28
- Union Directives 28
- Module Installation and 29
- Module Installation Procedure 30
- Module Removal Procedure 30
- Terminal Wiring 31
- 1746-NI16V 32
- 1746-NI16I 33
- Wiring Guidelines 34
- Input Devices 35
- Module ID Code 37
- Class 1 and Class 3 38
- Interface 38
- Module Addressing 39
- Class 1 Input Words - Data 41
- Class 3 Input Words - Data 41
- Module Update Time 42
- Channel Sample Order 43
- Channel Filter Frequency 45
- Selection 45
- Aliasing Frequency 46
- Noise Rejection 46
- Response to Slot Disabling 47
- Channel Configuration 49
- Output Image Channel 50
- Configuration Procedure 50
- Channel Configuration Word 51
- Low Calibration 53
- High Calibration 53
- Unused Bit (Bit 3) 54
- Class 1 Handshaking (Bit 2) 55
- Input Image - Channel Data 56
- Scaling the Channel Data 58
- Scaling Examples 60
- Formulas 60
- Scaled-for-PID to Real Units 62
- Channel Status Checking 64
- Class 1 Status Word 66
- Class 3 Status Word 67
- Input Word Bit Definitions 68
- Class 1 Handshaking (Bit 6) 69
- Input Type (Bits 3 and 2) 70
- Module operation vs 71
- Channel Operation 71
- Power-Up Diagnostics 71
- Channel Diagnostics 72
- LED Indicators 73
- Module Status LED 74
- All LEDs 74
- Error Codes 75
- Troubleshooting Flowchart 76
- Replacement parts 77
- Contacting Allen-Bradley 77
- Application Examples 79
- Ladder Files 81
- File 2 (Continued) 82
- File 3 (Continued) 87
- Class 3 Example 96
- Ladder File 2 97
- Data File N7 99
- Publication 1746-UM001A-US-P 100
- Specifications 101
- Physical Specifications 102
- Environmental 102
- Input Specifications 103
- A-4 Specifications 104
- Configuration Worksheet 105
- Appendix 107
- Calibration 109
- D-2 Calibration 110
- Glossary 111
- Glossary 2 112
- Glossary 3 113
- Glossary 4 114
- Numerics 115
- 2 Index 116
- Index 3 117
- 4 Index 118
- Back Cover 119
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