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Chapter 6: Module Data, Status, and Configuration
User’s Manual 0300217-03 Rev. A
6-11
6.3.22 Channel X
1
HART Slot Variables 0 & 1 (Words 34, 36, 38, 40)
This word defines HART slot variables 0 and 1 for the selected channel. The first byte
defines slot variable 0 and the second defines slot variable 1. The variable is defined as a
hexadecimal value between 0 and FF.
The HART slot variable is a floating point value that represents a device specific variable
defined by the manufacturer for the connected HART field device. This is an optional
configuration setting and is not supported by all HART field devices.
For more information regarding slot variables, refer to Section 7.2.
6.3.23 Channel X
1
HART Slot Variables 2 & 3 (Words 35, 37, 39, 41)
This word defines HART slot variables 2 and 3 for the selected channel. The first byte
defines slot variable 2 and the second defines slot variable 3.
The HART slot variable is a floating point value that represents a device specific variable
defined by the manufacturer for the connected HART field device. This is an optional
configuration setting and is not supported by all HART field devices.
For more information regarding slot variables, refer to Section 7.2.
Section 6.4
Output Data File
The output data file is used to command the analog signal for each channel as well as
controlling features which include, clearing process alarms, suspending HART
acquisition, and managing HART messages to and from HART field devices. The data
table structure is shown in the table below.
Table 6-7 (Output Data File)
Word/Bit1514131211109876543210
0
1
2
3
4 HS3 HS2 HS1 HS0 UL3 UH3 UL2 UH2 UL1 UH1 UL0 UH0
5
6
7
8..27
28..49 Reserved
Channel 0 Command Value
Channel 1 Command Value
Channel 2 Command Value
Channel 3 Command Value
Reserved
Message Request Buffer
Packet Just Scanned
Message Master Control
Message Request Size
6.4.1 Channel X
1
Command Value
The command value is used to control the analog output signal for each channel. The
command value is entered in engineering units defined by the channel’s selected data
format and output type. Refer to section 6.3.13 for more details regarding data format
and output type.
6.4.2 Unlatch Process High Alarms UH0 to UH3 (Word 4)
UH0 through UH3 will unlatch the high process alarms for channels 0 through 3
respectively. Refer to section 6.3.12 for more information regarding setting the alarm
latch function. To unlatch the high process alarm on a given channel, set the unlatch bit
to 1.
Note: Setting the unlatch process alarm bit will not clear the alarm latch if the
conditions that generated the alarm are still present.
1
Where X is the channel number (0 to 3)
- 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
- Section 1.3 10
- Hardware 10
- Features 10
- Section 1.4 11
- System 11
- 1.4.1 System Operation 11
- Section 1.5 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
- 3.5.2 Panel Mounting 24
- 3.7.2 Terminal Door Label 26
- 3.7.5 Wiring the Module 27
- 1.1.6 Wiring Diagram 28
- 3.7.7 Calibration 28
- Chapter 4 29
- Configuring the OF4IH for 29
- CompactLogix Using 29
- RSLogix 5000 29
- Section 4.4 36
- Project Tags 36
- Project 37
- Figure 4-11 (Output Tags) 39
- Section 4.5 40
- Sample Project 40
- Chapter 5 43
- Configuring the OF4IH for a 43
- MicroLogix 1500 Using 43
- RSLogix 500 43
- Section 5.3 48
- Using the 48
- Ladder Sample 48
- Chapter 6 53
- Module Data, Status, and 53
- Channel Configuration 53
- Configuration 56
- 6.3.12 Channel X 57
- 6.3.13 Channel X 59
- 6.3.20 Pad (Word 32) 62
- Chapter 7 67
- Enabling and Using HART on 67
- Table 7-1 (HART Packet 0) 71
- Table 7-2 (HART Packet 1) 72
- Figure 7-4 (Packet Ladder) 75
- 7.2.3 Packet Interval 76
- Section 7.3 77
- Sending 77
- Messages 77
- 7.3.3 Processing a Message 79
- Figure 7-6 Sending Message 80
- Figure 7-7 Receiving Message 81
- Figure 7-8a (Message Ladder) 82
- Figure 7-9b 83
- Figure 7-9c 84
- Figure 7-9d 85
- Figure 7-9e 86
- Figure 7-9f 87
- Figure 7-9g 88
- Figure 7-9h 89
- Figure 7-9i 90
- Figure 7-9j 91
- Figure 7-9k 92
- Figure 7-9l 93
- Figure 7-11b 102
- Figure 7-11c 103
- Figure 7-11d 104
- Figure 7-11e 105
- Section 7.5 107
- HART Protocol 107
- Overview 107
- 7.5.1 Message Format 107
- Attention 113
- Figure 8-7b 115
- 8.2.1 MAIN Routine 117
- 8.2.2 PACKETS Routine 118
- Figure 8-6b 119
- Figure 8-6c 120
- 8.2.3 MSG_TO_MOD Routine 121
- Figure 8-7c 123
- Figure 8-7d 124
- Figure 8-7e 125
- Figure 8-7f 126
- Figure 8-7g 127
- Figure 8-7h 128
- Figure 8-7i 129
- Figure 8-7j 130
- Figure 8-7k 131
- Figure 8-7l 132
- Figure 8-7m 133
- Figure 8-7n 134
- Figure 8-7o 135
- Figure 8-7p 136
- Figure 8-7q 137
- 8.2.4 SRC_CHECK Routine 138
- Figure 8-8b 139
- 8.2.5 DEST_CHECKSUM Routine 140
- Figure 8-9b 141
- 8.2.6 HART_MSG Routine 142
- Figure 8-10b 143
- Figure 8-10c 144
- Figure 8-10d 145
- Figure 8-10e 146
- Figure 8-10f 147
- Figure 8-10g 148
- Figure 8-10h 149
- Figure 8-10i 150
- Figure 8-10j 151
- Figure 8-10k 152
- 8.2.7 WORD_BYTE Routine 153
- Figure 8-11b 154
- Figure 8-11c 155
- 8.2.8 HART_CHECK Routine 156
- Figure 8-12b 157
- 8.2.9 BYTE_WORD Routine 158
- Chapter 9 161
- Diagnostics and 161
- Troubleshooting 161
- 1514131211109876543210 163
- 0000000000000000 163
- Section 9.7 165
- Error Codes 165
- Section 9.8 165
- Inhibit Function 165
- Appendix A 167
- Module Specifications 167
- 0C < Ta < 60C 168
- DEMKO 11 ATEX 1103437X 168
- IIC T4 Gc 168
- Appendix B 169
- HART Universal and Common 169
- Practice Commands 169
- Getting Technical 175
- Assistance 175
- Declaration of 175
- Conformity 175
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