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Installation, Operation and Maintenance Manual
MDE 254 Rev. 1
Table of Contents
March 2021
Table of Contents
Table of Contents
Section 1: Introduction
Introduction............................................................................................................1
Section 2: Operation and Storage
Operation and Storage.......................................................................................................2
Section 3: Communication Features
Communication Features...................................................................................................3
Section 4: HART Module
4.1 On Board Indications and Jumpers ................................................................. 5
4.2 On Board Settings ......................................................................................... 5
4.3 Analogue Control Signal ................................................................................ 6
4.4 Process Variables ........................................................................................... 6
Section 5: HART Protocol Previews
5.1 HART Wirings ................................................................................................ 8
Section 6: Wiring and Installation
6.1 Cable length ................................................................................................ 10
6.2 Shielding and Grounding ............................................................................. 10
Section 7: HART Commands
HART Commands..............................................................................................................11
Section 8: HART Command Set
8.1 Universal Commands .................................................................................. 13
8.1.1 Command #0: Read Unique Identifier ............................................... 13
8.1.2 Command #1: Read Primary Variable................................................ 14
8.1.3 Command #2: Read Loop Current and Percent of Range ................... 15
8.1.4 Command #3: Read Dynamic Variables and Loop Current ................. 15
8.1.5 Command #6: Write Polling Address ................................................ 16
8.1.6 Command #7: Read Loop Configuration ........................................... 17
8.1.7 Command #8: Read Dynamic Variable Classifications ....................... 17
8.1.8 Command #9: Read Device Variables with Status .............................. 18
8.1.9 Command #11: Read Unique Identifier Associated with Tag ..................20
8.1.10 Command #12: Read Message ......................................................... 21
8.1.11 Command #13: Read Tag, Descriptor, Date ....................................... 21
8.1.12 Command #14: Read Primary Variable Transducer Information ........ 22
8.1.13 Command #15: Read Device Information ......................................... 22
8.1.14 Command #16: Read Final Assembly Number .................................. 23
8.1.15 Command #17: Write Message ........................................................ 23
8.1.16 Command #18: Write Tag, Descriptor, Date ...................................... 24