Description of hart interface, 3 connection variants, 2 multi-drop connection (2-wire connection) – KROHNE OPTIWAVE 7300C EN User Manual
Page 114
9
DESCRIPTION OF HART INTERFACE
114
OPTIWAVE 7300 C
www.krohne.com
03/2014 - 4000172405 - HB OPTIWAVE 7300 R07 en
HART
®
identification codes and revision numbers
9.3 Connection variants
The signal converter is a 2-wire device with 4...20 mA current output and HART
®
interface.
• Multi-Drop Mode is supported
Multi-Drop Mode is supported
Multi-Drop Mode is supported
Multi-Drop Mode is supported
In a Multi-Drop communication system, more than 1 device is connected to a common
transmission cable.
• Burst Mode is not supported
Burst Mode is not supported
Burst Mode is not supported
Burst Mode is not supported
There are two ways of using the HART
®
communication:
• as Point-to-Point connection and
• as Multi-Drop connection with 2-wire connection.
9.3.1 Point-to-Point connection - analogue / digital mode
Point-to-Point connection between the signal converter and the HART
®
Master.
The current output of the device is passive.
Also refer to
Point-to-point connection
on page 43.
9.3.2 Multi-Drop connection (2-wire connection)
Up to 15 devices may be installed in parallel (this signal converter and other HART
®
devices).
For an illustration of multi-drop networks, refer to
Multi-drop networks
on page 44.
For data on communication in multi-drop mode, refer to
Network configuration
on page 68.
Manufacturer ID:
0x45
Device:
0xE5
Device Revision:
1
DD Revision
2
HART
®
Universal Revision:
5
FC 375/475 system SW.Rev.:
≥ 1.8
AMS version:
≥ 7.0
PDM version:
-
FDT version:
≥ 1.2