Digital Communication - ABB FSM4000 Manual

56 FSM4000 ELECTROMAGNETIC FLOWMETER | DS/FSM4000-EN REV. L
—
... Transmitter
Inputs/Outputs
DC output (terminals 31, 32)
The following functions can be selected in the software:
• 0 to 20 mA load ≤ 560 Ω
4 to 20 mA load ≤ 560 Ω
•
0 to 10 mA load ≤ 1120 Ω
•
2 to 10 mA load ≤ 1120 Ω
•
Switch output (terminals 41, 42)
The following functions can be selected in the software:
• Forward/reverse flow direction signal
• Flow limit alarm (max. or min.)
• Collective alarm
• Empty meter tube
The contact output can be configured as normally open or
normally closed.
Optoelectronic coupler
'closed': 0 V ≤ U ≤ 2 V, 2 mA ≤ I
•
CEL
'open': 16 V ≤ U ≤ 30 V, 0 mA ≤ I
•
CEH
Scaled pulse output (terminals 51, 52)
Maximum totalizer frequency 5 kHz. Pulse value per physical
unit from 0.001 to 1000 / unit selectable in the software.
The pulse width can be configured from 0.100 to 2000 ms.
The version (active, passive) can be changed via jumpers.
Active
Voltage pulse 24 V rectangular
• Load ≥ 150 Ω
pulse width ≤ 50 ms, max. pulse frequency ≤ 3 Hz,
• Load ≥ 500 Ω
pulse width ≥ 0.1 ms, max. pulse frequency: 5 kHz.
Passive (optoelectronic coupler)
'closed': 0 V ≤ U ≤ 2 V, 2 mA ≤ I
•
CEL
'open': 16 V ≤ U ≤ 30 V, 0 mA ≤ I
•
CEH

Digital communication

HART® protocol
The device is registered with the HART Communication
Foundation.
Note
The HART® protocol is an unsecured protocol, as such the
intended application should be assessed to ensure that these
protocols are suitable before implementation.
Figure 31: HART communication
≤ 220 mA
CEL
≤ 2 mA
HART protocol
CEH
Configuration
Transmission
Max. signal amplitude
Current output load
Cable
Max. cable length
Baud rate
Display
For additional information, see the separate interface
description.
≤ 220 mA
CEL
≤ 2 mA
CEH
System integration
In conjunction with the DTM (Device Type Manager) available
for the device (software version B.10 and higher),
communication (configuration, parameterization) can occur
with the corresponding framework applications according to
FDT 1.21 (DAT200 Asset Vision Basic).
Other tool/system integrations (e.g., Emerson AMS/Siemens
S7) are available upon request.
A free of charge version of the DAT200 Asset Vision Basic
framework application for HART® or PROFIBUS is available
upon request.
The required DTMs are contained on the
DAT200 Asset Vision Basic DVD or in the DTM Library.
They can also be downloaded from www.abb.com/flow.
Directly on the device
Software DAT200 Asset Vision Basic (+ HART-
DTM)
FSK modulation on current output
4 ... 20 mA according to Bell 202 Standard
1.2 mAss
Min. 250 Ω, max. = 560 Ω
AWG 24 twisted
1500 m
1200 baud
Log. 1: 1200 HZ
Log. 0: 2200 Hz