Rockwell-automation 1794-L34 FlexLogix Controller System User Manual Manuale Utente Scaricare il pdf (Pagina 112)

Publication 1794-UM001G-EN-P - January 2007

112 FlexLogix Back-Up on DeviceNet

Reading Back-up State Rung

You can read the back-up state of the DeviceNet scanner with a single

rung of ladder logic. The back-up state is useful for debug or more

sophisticated back-up schemes. The message in this rung uses the

SINT data type.

Figure shows the rung you can use to read the back-up state.

Rung 5 message configuration and communication tabs

1 2 ... 107 108 109 110 111 112 113 114 115 116 117 ... 129 130

FlexLogix 1
Controller System 1
User Manual 1
Important User Information 2
Table of Contents 3
Chapter 5 4
Chapter 6 4
Develop Applications 4
Table of Contents 5 5
6 Table of Contents 6
Summary of Changes 7
Introduction 7
Updated Information 7
8 Summary of Changes 8
Related Documentation 9
Where to Start 11
Install Hardware 13
14 Where to Start 14
Serial Port 15
Configure the Serial Driver 18
If: Then: 19
Yes Click OK 19
Select the Controller Path 20
Communicate over Networks 21
EtherNet/IP 22
Connections over EtherNet/IP 24
For more information 24
ControlNet 25
Connections over ControlNet 26
DeviceNet 28
Define Data Blocks 30
Procedures Manual, 1756-PM001 31
Communicate with DF1 devices 33
On this tab Do this 36
1. Select User Mode 36
1. Select ASCII protocol 36
Modbus support 38
Third Party 42
Use This Chapter 45
Produce and Consume 45
(Interlock) Data 45
Send and Receive 47
Messages 47
Connection Overview 49
Calculate Connection Use 50
Connections Example 52
Select I/O Modules 53
Place Local I/O Modules 54
Configure I/O 55
I/O connections 57
Configure Distributed I/O 59
Address I/O Data 62
Determine When Data 63
Is Updated 63
Monitor I/O Modules 64
Reconfigure an I/O Module 66
In this property: Select: 67
Develop Programs 70
Defining tasks 71
30252015105 454035 50 6 72
Defining programs 73
Defining routines 73
Sample controller projects 74
Organize Tags 75
Select a Programming 76
Language 76
Add-On Instructions 77
Monitor Controller Status 79
Monitor Connections 80
Select a System 82
Overhead Percentage 82
Use the Event Task 85
Triggering the Event Task 86
Configure PhaseManager 89
State Model Overview 91
How equipment changes states 92
Compare PhaseManager to 94
Other State Models 94
Minimum System 94
Requirements 94
Equipment Phase 95
Instructions 95
Maintain the Battery 97
Estimating Battery Life 98
Replacing a Battery 99
ATTENTION 100
Appendix 101
Controller LEDs 101
Using This Appendix 103
How the Back-up Works 104
Requirements of the Back-Up 105
Power-Up and 106
System Start-up 106
Developing the FlexLogix 108
Back-Up Application 108
Reading Back-up State Rung 112
Reading Back-up Status 114
Using Indicators to 115
Check Status 115
Development and 115
Debugging Tips 115
Instruction Locator 117
124 Index 124
Index 125 125
126 Index 126
How Are We Doing? 127
BUSINESS REPLY MAIL 128
Rockwell Automation 130

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