Bus Address; System Integration; Bus Topology - ABB FSM4000 Manual

FSM4000 ELECTROMAGNETIC FLOWMETER | DS/FSM4000-EN REV. L
PROFIBUS PA protocol
The interface conforms to Profile 3.0 (PROFIBUS standard,
EN 50170, DIN 19245 [PRO91]).
Note
The PROFIBUS PA® protocol is an unsecured protocol, as such
the intended application should be assessed to ensure that
these protocols are suitable before implementation.
A Segment coupler (incl. bus supply and termination)
Figure 32: Example for PROFIBUS PA connection
PROFIBUS PA ID No.: 0x078C
Alternative Standard- 0x9700 or 0x9740
Ident-No.
Configuration Directly on the device
Software DAT200 Asset Vision Basic (+
PROFIBUS PA-DTM)
Transmission signal Acc. to IEC 61158-2
Cable Shielded, twisted cable (acc. to IEC 61158-2,
types A or B are preferred)

Bus topology

• Tree and / or line structure.
• Bus connection: Passive at both ends of the main bus line
(RC element R = 100 Ω, C = 1 µF).
Voltage / current consumption
• Mean current consumption: 10 mA.
• In the event of an error, the FDEfunction (= Fault
Disconnection Electronic) integrated in the device makes
sure that the current consumption cannot exceed a
maximum of 13 mA.
• The upper current limit is restricted electronically.
• The voltage on the bus line must lie in the range of
9 to 32 V DC

Bus address

In the case of devices with a PROFIBUS PA interface, check
the bus address prior to commissioning. If no specifications
exist to the contrary, the address is set to 126. During
commissioning, the address must be set to a valid value in
the range 0 to 125.

System integration

Use of PROFIBUS PA profile B, B3.0 ensures interoperability
and interchangeability of units. Interoperability means that
devices from different manufacturers can be physically
connected to a bus and are communication-ready.
The devices can be interchanged without having to
reconfigure the process control system.
To support interchangeability, three different GSD files
(equipment master data) are provided, which can be
integrated in the system.
For additional information, see the separate interface
description.
The manufacturer-specific GSD file ABB_078C can be
downloaded from http://www.abb.com/flow.
The standard GSD files PA1397xx.gsd can be downloaded
from http://www.profibus.com.
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