Spectrum-controls 1769sc-HART Modules Manual do Utilizador descarregar pdf (Página 146)

Compact IO™ Isolated HART Analog Input Module

User's Manual 0300215-03 Rev. A

8-30

8.2.5 DEST_CHECKSUM Routine

This routine calculates the checksum for a message received from the module one page at

a time. This routine is called from the MSG_TO_MOD routine.

Figure 8-9a (Destination Checksum)

1 2 ... 141 142 143 144 145 146 147 148 149 150 151 ... 185 186

Compact™ I/O 1
Isolated HART 1
Analog Module 1
Table of Contents 3
Preface 7
Conventions 8
Used in This 8
Chapter 1 9
Module Overview 9
Do No t Remov e RTB Un der 10
Power Unless Area is Non 10
Hazardous 10
Section 1.5 11
System 11
Overview 11
1.5.1 System Operation 11
Section 1.6 12
Module 12
Operation 12
Chapter 2 13
Quick Start for Experienced 13
Chapter 3 19
Installation and Wiring 19
3.3.3 Remove Power 21
3.3.4 Selecting a Location 21
Section 3.4 22
System Assembly 22
Section 3.5 23
Mounting 23
3.5.1 Minimum Spacing 23
3.5.2 Panel Mounting 23
3.5.3 DIN Rail Mounting 24
3.7.2 Terminal Door Label 26
3.7.5 Wiring the Module 27
3.7.6 Wiring Diagram 28
3.7.7 Calibration 28
Chapter 4 29
Configuring the IF4IH for 29
CompactLogix Using 29
RSLogix 5000 29
Section 4.2 33
The Add-On 33
Profile 33
Section 4.4 36
Project Tags 36
Project 38
Chapter 5 41
Configuring the IF4IH for a 41
MicroLogix 1500 Using 41
RSLogix 500 41
Section 5.2 42
Configuring 42
1500 System 42
Section 5.3 46
Using the 46
Ladder Sample 46
Chapter 6 51
Module Data, Status, and 51
Channel Configuration 51
Section 6.4 55
Configuration 55
Raw/Proportional Data 62
Engineering Units 62
Scaled-for-PID 62
Percent Range 62
6.4.9 Channel X 64
6.4.10 Channel X 64
6.5.8 Reserved (Words 24…45) 66
Section 6.6 67
Determining 67
Effective 67
Resolution 67
Section 6.7 68
Update Time 68
Chapter 7 69
Enabling and Using HART on 69
Table 7-1 (HART Packet 0) 73
Table 7-2 (HART Packet 1) 74
Figure 7-4 (Packet Ladder) 77
7.2.3 Packet Interval 78
Section 7.3 79
Sending 79
Messages 79
7.3.3 Processing a Message 81
Figure 7-6 Sending Message 82
Figure 7-8a (Message Ladder) 84
Figure 7-8b 85
Figure 7-8c 86
Figure 7-8d 87
Figure 7-8e 88
Figure 7-8f 89
Figure 7-8g 90
Figure 7-8h 91
Figure 7-8i 92
Figure 7-8j 93
Figure 7-8m 95
Figure 7-8n 96
Figure 7-8o 97
Section 7.4 98
Module Specific 98
Commands 98
Attention 103
Figure 7-10b 107
Figure 7-10c 108
Figure 7-10d 109
Figure 7-10e 110
Section 7.5 111
HART Protocol 111
7.5.1 Message Format 111
Chapter 8 117
Programming Examples 117
Figure 8-4b 121
8.2.1 MAIN Routine 123
8.2.2 PACKETS Routine 124
Figure 8-6b 125
Figure 8-6c 126
8.2.3 MSG_TO_MOD Routine 127
Figure 8-7b 128
Figure 8-7c 129
Figure 8-7d 130
Figure 8-7e 131
Figure 8-7f 132
Figure 8-7g 133
Figure 8-7h 134
Figure 8-7i 135
Figure 8-7j 136
Figure 8-7k 137
Figure 8-7l 138
Figure 8-7m 139
Figure 8-7n 140
Figure 8-7o 141
Figure 8-7p 142
Figure 8-7q 143
8.2.4 SRC_CHECK Routine 144
Figure 8-8b 145
8.2.5 DEST_CHECKSUM Routine 146
Figure 8-9b 147
8.2.6 HART_MSG Routine 148
Figure 8-10b 149
Figure 8-10c 150
Figure 8-10d 151
Figure 8-10e 152
Figure 8-10f 153
Figure 8-10g 154
Figure 8-10h 155
Figure 8-10i 156
Figure 8-10j 157
Figure 8-10k 158
8.2.7 WORD_BYTE Routine 159
Figure 8-11b 160
Figure 8-11c 161
8.2.8 HART_CHECK Routine 162
Figure 8-12b 163
8.2.9 BYTE_WORD Routine 164
Figure 8-13b 165
Chapter 9 167
Diagnostics and 167
Troubleshooting 167
1514131211109876543210 169
0000000000000000 169
Value Bits 11 170
Description 170
Section 9.8 171
Inhibit Function 171
Appendix A 173
Module Specifications 173
Section A.2 174
Environmental 174
Specifications 174
Appendix B 177
HART Universal and Common 177
Practice Commands 177
Wire Size · 3-9 183
Wiring Diagram · 3-10 183
Wiring Guidlines · 2-3 183
Getting Technical 185
Assistance 185
Declaration of 185
Conformity 185

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