ABB ProcessMaster FET632 - Digital Communication Protocols; HART Communication Protocol; Modbus Communication Protocol

FEP630, FEH630 ELECTROMAGNETIC FLOWMETER | OI/FEP630/FEH630-EN REV. D 49
Digital communication
HART® communication
Note
The HART® protocol is not secure, as such the intended
application should be assessed to ensure that these protocols
are suitable before implementation.
In connection with the DTM (Device Type Manager) available to
the device, communication (configuration, parameterization)
can be carried out FDT 0.98 or 1.2 (DSV401 R2).
Other tool or system integrations (e.g. Emerson AMS / Siemens
PCS7) on request.
The necessary DTMs and other files can be downloaded from
www.abb.com/flow.
HART output
Terminals Active: Uco / 32
Passive: 31 / 32
Protocol HART 7.1
Transmission FSK modulation on current output 4 to 20 mA in
accordance with the Bell 202 standard
Baud rate 1200 baud
Signal amplitude Maximum 1.2 mAss
Factory setting of the HART process variables
HART process variable Process value
Primary Value (PV) Q
m
– Mass flow
Secondary Value (SV) Q
v
– Volume flow rate
Tertiary Value (TV) p – Density
Quaternary Value (QV) T
m
– Measuring medium temperature
The process values of the HART variables can be set in the device
menu.
Modbus® communication
Note
The Modbus® protocol are not secure, as such the intended
application should be assessed to ensure that these protocols
are suitable before implementation.
Modbus is an open standard owned and administrated by an
independent group of device manufacturers styled the Modbus
Organization (www.modbus.org).
Using the Modbus protocol allows devices made by different
manufacturers to exchange information via the same
communication bus, without the need for any special interface
devices to be used.
Modbus protocol
Terminals V1 / V2
Configuration Via the Modbus interface or via the local operating
interface in connection with Asset Vision Basic
(DAT200) and a corresponding Device Type Manager
(DTM)
Transmission Modbus RTU - RS485 serial connection
Baud rate 2400, 4800, 9600, 19200, 38400, 56000, 57600,
115200 baud
Factory setting: 9600 baud
Parity None, even, odd
Factory setting: odd
Stop bit One, two
Factory setting: One
IEEE format Little endian, big endian
Factory setting: Little endian
Typical response time < 100 ms
Response delay time 0 to 200 milliseconds
Factory setting: 10 milliseconds