Spectrum Controls 1769sc-HART Modules - Manual (Page 5)

Table of Contents
User’s Manual 0300217-03 Rev. A
v
7.2.2 Auto Acquisition ........................................................................................................................................ 7‐3
7.2.3 Packet Interval ........................................................................................................................................ 7‐10
S ECTION 7.3 S ENDING AND R ECEIVING M ESSAGES .......................................................................................................... 7‐11
7.3.1 Module Output Tags Used For Messaging .............................................................................................. 7‐11
7.3.2 Module Input Tags Used For Messaging ................................................................................................. 7‐12
7.3.3 Processing a Message ............................................................................................................................. 7‐13
S ECTION 7.4 M ODULE S PECIFIC C OMMANDS ................................................................................................................ 7‐28
7.4.1 Get HART Device Information ................................................................................................................. 7‐28
7.4.2 HART Pass‐Through Command ............................................................................................................... 7‐30
S ECTION 7.5 HART P ROTOCOL O VERVIEW ................................................................................................................... 7‐41
7.5.1 Message Format ..................................................................................................................................... 7‐41
7.5.2 Sending a HART Command to a Field Device via Pass‐through .............................................................. 7‐43
CHAPTER 8 PROGRAMMING EXAMPLES .......................................................................................................... 8‐1
S ECTION 8.1 C OMPACT L OGIX ....................................................................................................................................... 8‐1
8.1.1 Reset/Reconfig .......................................................................................................................................... 8‐1
8.1.3 Swap Byte Order ....................................................................................................................................... 8‐3
8.1.4 Converting Unpacked ASCII to Packed ASCII ............................................................................................. 8‐3
S ECTION 8.2 M ICRO L OGIX 1500 .................................................................................................................................. 8‐6
8.2.1 MAIN Routine ............................................................................................................................................ 8‐7
8.2.2 PACKETS Routine ....................................................................................................................................... 8‐8
8.2.3 MSG_TO_MOD Routine .......................................................................................................................... 8‐11
8.2.4 SRC_CHECK Routine ................................................................................................................................ 8‐28
8.2.5 DEST_CHECKSUM Routine ...................................................................................................................... 8‐30
8.2.6 HART_MSG Routine ................................................................................................................................ 8‐32
8.2.7 WORD_BYTE Routine .............................................................................................................................. 8‐43
8.2.8 HART_CHECK Routine ............................................................................................................................. 8‐46
8.2.9 BYTE_WORD Routine .............................................................................................................................. 8‐48
CHAPTER 9 DIAGNOSTICS AND TROUBLESHOOTING ........................................................................................ 9‐1
S ECTION 9.1 S AFETY C ONSIDERATIONS .......................................................................................................................... 9‐1
9.1.1 Indicator Lights ......................................................................................................................................... 9‐1
9.1.2 Stand Clear of Equipment ......................................................................................................................... 9‐1
9.1.3 Program Alteration ................................................................................................................................... 9‐1
9.1.4 Safety Circuits ........................................................................................................................................... 9‐1
S ECTION 9.2 M ODULE O PERATION VS . C HANNEL O PERATION ........................................................................................... 9‐2
S ECTION 9.3 P OWER ‐ UP D IAGNOSTICS .......................................................................................................................... 9‐2
S ECTION 9.4 C HANNEL D IAGNOSTICS ............................................................................................................................ 9‐2
9.4.1 Invalid Channel Configuration Detection .................................................................................................. 9‐2
9.4.2 Over or Under‐Range Detection ................................................................................................................ 9‐3
S ECTION 9.5 N ON ‐ CRITICAL VS . C RITICAL M ODULE E RRORS .............................................................................................. 9‐3
S ECTION 9.6 M ODULE E RROR D EFINITION T ABLE ............................................................................................................. 9‐3
9.6.1 Module Error Field .................................................................................................................................... 9‐3
9.6.2 Extended Error Information Field .............................................................................................................. 9‐4
S ECTION 9.7 E RROR C ODES .......................................................................................................................................... 9‐5
S ECTION 9.8 M ODULE I NHIBIT F UNCTION ...................................................................................................................... 9‐5
APPENDIX A MODULE SPECIFICATIONS ............................................................................................................ A‐1
E LECTRICAL S PECIFICATIONS ......................................................................................................................................... A‐1
E NVIRONMENTAL S PECIFICATIONS ................................................................................................................................. A‐2
R EGULATORY C OMPLIANCE .......................................................................................................................................... A‐2
APPENDIX B HART UNIVERSAL AND COMMON PRACTICE COMMANDS ............................................................ B‐1