Rockwell-automation 1746-NI8 SLC 500 Analog Input Modules User Manual Instrukcja Użytkownika Pobierz pdf (Strona 40)

4–9

Preliminary Operating Considerations

Publication

17466.8 - April 1997

The graph below shows the aliasing characteristic at a filter

frequency of 10 Hz with one channel enabled.

-60

Input Frequency (Hz)

Transfer Function Response (dB)

10 Hz Filter Frequency with One Channel Enabled

-40

-20

1333 Hz

The graph below shows the aliasing characteristic at a filter

frequency of 10 Hz with eight channels enabled.

-60

Input Frequency (Hz)

Transfer Function Response (dB)

10 Hz Filter Frequency with Eight Channels Enabled

-40

-20

167 Hz

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 90 91

SLC 500t 1
Input Module 1
AllenBradley 1
Important User 2
Information 2
Table of Contents 3
Table of Contentsii 4
Table of Contents iii 5
Table of Contentsiv 6
Who Should Use this 7
Purpose of this Manual 7
Contents of this Manual 8
Related Documentation 9
Common Techniques Used in 10
AllenBradley Support 10
Overview 11
Hardware Features 12
System Overview 13
(shown for one channel) 14
Quick Start 15
Procedures 16
sensor cable 17
1011 00000000 18
Program the configuration 19
0000 00000000 20
1011 00000000000 21
Installation and Wiring 22
Module Location in Chassis 23
Compliance to European 24
Union Directives 24
Module Installation and 25
Module Installation Procedure 26
Terminal Wiring 27
Publication 28
17466.8 - April 1997 28
Input Devices 30
Preliminary Operating 32
Considerations 32
Class 1 and Class 3 33
Interface 33
Module Addressing 33
Class 3 Memory Map 34
O : 4 . 2 35
I : 4 . 10 35
Module Update Time 36
Channel TurnOn, TurnOff 37
Response to Slot Disabling 37
Channel Filter Frequency 38
Selection 38
Channel Configuration, Data 42
Channel Configuration 43
Procedure 43
Channel Data Word 46
Scaling the 47
Scaling Examples 49
" TIP 49
Channel Status Checking 52
10 V dc 53
Input Type Status (Bits 0-2) 54
Channel Status (Bit 11) 54
Open Circuit Error (Bit 12) 55
OverRange Error (Bit 13) 55
UnderRange Error (Bit 14) 55
Configuration Error (Bit 15) 55
1100 00110100 56
Interfacing to the PID 58
Instruction 58
Monitoring Channel Status 59
Bits (Class 3 Mode Only) 59
Module Diagnostics and 60
Troubleshooting 60
LED Indicators 61
Module Status LED (Green) 63
Troubleshooting Flowchart 64
Replacement Parts 65
Contacting AllenBradley 65
Application Examples 66
Program Listing 68
Data File 68
Supplementary Example 69
1112131415 71
910 8 67450123 71
Bit Number 71
Specifications 76
TTL:Chap 77
+85°C (-40°F to +185°F) 77
Configuration Worksheet 78
Converting from 1746NI4 to 79
1746NI8 79
1100 01111000 81
1100 01100000 81
Two's Complement Binary 82
Glossary 84
GlossaryG–2 85
Glossary G–3 86
Worldwide representation 91

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