Figure 2-2: Example Of Hart Connection Rl - Honeywell SLG 700 User Manual

Figure 2-2 is an example of a HART connection to the transmitter. The communication
resistor RL may be inserted anywhere in the 4-20 mA loop but it is recommended to be
installed close to the positive supply. Refer to section
RL ranges
The MC Toolkit is a dedicated Honeywell communication tool that uses Device Description
(DD) files to communicate with multiple transmitter models. Also other equivalent tools or a
HART-to-USB converter may be used. Device Description files are available from:

HONEYWELL:
https://www.honeywellprocess.com/en-US/explore/products/instrumentation/process-level-
sensors/Pages/smartline-level-transmitter.aspx
Select the "Software" tab.
Scroll/search for file name:
"HART Device Description (DD) files for Honeywell HART Devices"
This .zip file contains the latest version of the DD files for all of Honeywell's HART field
devices.
Unzip the file to locate the DD files applicable to the SLG 700 series.

®
HART FOUNDATION:
Note:
Revision 7
4mA, and the minimum terminal voltage should be 14V.
Go to:
http://en.hartcomm.org
Device Descriptions (DD) are HART data files which are
gathered from field device manufacturers which describes the
features and functions of a device.
HART provides a detailed definition here:
http://en.hartcomm.org/hcp/tech/faq/faq.html

Figure 2-2: Example of HART connection RL

SLG 700 SmartLine Level Transmitter User's Manual
3.3.2 for acceptable power supply and
Page 7