ProSoft Technology ProLinx-HART Dokumentacja Pobierz pdf (Strona 67)

ProLinx-HART ♦ ProLinx Gateway Reference

HART Master with Analog I/O Driver Manual

ProSoft Technology, Inc. Page 67 of 104

October 13, 2011

COMMAND 45 - Trim DAC Zero

Description

This command calibrates the device Digital to analog converter zero. This is done by

writing the same current value that is measured in the loop.

Write Parameters

Word High Byte Low Byte

0 Floating Point measured current (mA)

Floating Point Data Returned

Word High Byte Low Byte

0 Floating Point Current (mA)

Integer Data Returned

Word High Byte Low Byte

0 STATUS WORD

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 103 104

ProLinx-HART 1
Your Feedback Please 2
How to Contact Us 2
ProSoft Technology 2
Product Documentation 2
PLX Markings 4
Contents 5
1 Start Here 9
1.1 System Requirements 10
1.2 Package Contents 11
1.5.1 Using the Online Help 14
2 Functional Overview 15
2.1 HART Channels 16
Universal Command Set 18
HART Commands supported 18
Common Practice Command Set 19
2.3.2 HART Command List 21
2.3.3 Auto-Polling 21
Auto-Poll Disabled Mode 24
Point-to-Point Mode 24
Point-to-Point mode 24
In This Chapter 27
3.1 [Analog HART Card x] 28
3.1.1 Database Register 28
3.1.2 CHx Low 28
3.1.3 CHx High 28
3.2.6 Command Count 30
3.2.7 Auto-Poll Code 30
3.2.8 Auto-Poll DB Address 30
3.2.9 Auto-Poll Swap Float 30
3.2.10 Max Device Count 30
3.3 [HART PORT x COMMANDS] 31
3.3.1 Command List Overview 31
3.3.3 Enable 32
3.3.10 Int. DB Address 34
3.3.11 Int Word Count 34
3.3.12 Swap Code 34
3.3.13 Use Long 34
3.3.14 Enable DB Address 35
3.3.15 Done DB Address 35
3.3.16 Write DB Address 35
3.3.17 Swap Code 35
3.3.18 Byte Count 35
3.3.19 Fixed Data 36
3.4.2 From Address 38
3.4.3 To Address 38
3.4.4 Register Count 38
3.4.5 Swap Code 38
3.4.6 Delay Preset 39
4 Reference 41
4.1 HART Universal Commands 42
Description 43
Write Parameters 43
Floating Point Data Returned 43
Integer Data Returned 43
COMMAND 12 - Read Message 47
COMMAND 17 - Write Message 52
COMMAND 39 - EEPROM Control 61
COMMAND 43 - Set PV Zero 65
COMMAND 44 - Write PV Units 66
COMMAND 45 - Trim DAC Zero 67
COMMAND 46 - Trim DAC Gain 68
Write Parameters: 75
4.3 Error/Status Data 85
HART Command List Error Data 87
Module Error Codes 87
Protocol Error Codes 88
4.4.3 Wiring Diagrams 91
Contacting Technical Support 95
5.1.1 Returning Any Product 97
5.2 LIMITED WARRANTY 99
5.2.8 No Other Warranties 102
5.2.9 Allocation of Risks 102

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