Emerson 848L - Manual

Emerson 848L

Emerson 848L – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – Reference Manual; OUNDATION; Fieldbus; NOTICE
  • Page 3 – Table of Contents
  • Page 7 – Section 1; SAFETY MESSAGES
  • Page 9 – NOTE
  • Page 11 – Section 2; To a DIN rail without an enclosure
  • Page 12 – Hinge the DIN rail into the slots on the bottom of the transmitter.
  • Page 15 – Tighten the terminal screws to ensure adequate contact.; GROUNDING
  • Page 16 – Security
  • Page 17 – DISCRETE INPUT WIRING CONFIGURATION
  • Page 18 – Commissioning Tag
  • Page 19 – Use the following steps to install the 848L with Cable Glands:
  • Page 20 – Use the following steps to install the 848L with Conduit Entries:
  • Page 21 – Section 3; OVERVIEW; fieldbus. This section is organized by block information. For
  • Page 25 – SOFT WRITE LOCK and HARD WRITE LOCK
  • Page 26 – Electronics Failure
  • Page 27 – Advisory Alarms
  • Page 28 – parameter displays which of the advisories is
  • Page 29 – Set the resource block to OOS.
  • Page 30 – Select False, True or Last Good Value
  • Page 32 – Channel Functions
  • Page 33 – PS
  • Page 34 – EQ
  • Page 35 – Logic Functions
  • Page 36 – The following unary operator requires just one argument:
  • Page 37 – Counter Functions
  • Page 38 – then set wins and the result of the function is true.
  • Page 39 – SHR
  • Page 40 – Logic Execution Timing
  • Page 41 – Simulation
  • Page 43 – Section 4; FIELDBUS; fieldbus technology developed and supported by Emerson
  • Page 44 – Performing a Restart
  • Page 47 – Appendix A; SPECIFICATIONS; Inputs
  • Page 48 – Outputs
  • Page 49 – 4 VDC nominal, 9 VDC minimum, 32 VDC maximum
  • Page 51 – EXAMPLE FOR THE LOGIC EXECUTION:
  • Page 55 – Appendix B; Rosemount Inc. — Chanhassen, Minnesota USA; Canadian Standards Association (CSA) Approvals
  • Page 56 – CENELEC Approvals; NC; ND
  • Page 57 – Appendix C
  • Page 64 – Table C-3. Logic Transducer Parameters and Descriptions
  • Page 65 – The DI block supports a function to invert the input and alarming.
  • Page 69 – The parameter FSTATE_STATUS shows that points are in Fault State.
  • Page 71 – Appendix D; The maximum number of characters per equation shall be 80.
  • Page 77 – Appendix E
  • Page 78 – Interlock
  • Page 80 – Timed Switch; Basic Motor Control
  • Page 81 – Enter the expression and test as above.; Permissive
  • Page 83 – Rung T2 is equation 3, the 30 minute timer:
  • Page 86 – If a brake was required, it could be controlled by output equation 3:
  • Page 90 – Instantiate a DO block and set the channel number to 9.
  • Page 93 – Appendix F; confirm
  • Page 94 – There are at least three permutations of any valve circuit:; Alarms
  • Page 95 – Double Block and Bleed; Boolean Expressions
  • Page 96 – The Boolean expression is:; Alarm Variations; It both confirms are used, then the Boolean expression is:; Output Variations
  • Page 98 – The outputs are the same whether or not there are open confirms.
  • Page 101 – Numerics
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Reference Manual

00809-0100-4696, Rev AA
September 2004

Rosemount 848L Logic Transmitter
with F

OUNDATION

™

Fieldbus

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Summary

Page 2 - Reference Manual; OUNDATION; Fieldbus; NOTICE

Reference Manual 00809-0100-4696, Rev AASeptember 2004 Rosemount 848L www.rosemount.com Rosemount 848L Discrete Logic Temperature Transmitter with F OUNDATION Fieldbus Cover photo: 848-848C004 NOTICE Read this manual before working with the product. For personal and system safety, and for optimum pr...

Page 3 - Table of Contents

Reference Manual 00809-0100-4696, Rev AASeptember 2004 Rosemount 848L www.rosemount.com Table of Contents SECTION 1Introduction Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 7 - Section 1; SAFETY MESSAGES

Reference Manual 00809-0100-4696, Rev AASeptember 2004 Rosemount 848L www.rosemount.com Section 1 Introduction Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2Retu...

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