Endress+Hauser prolevel FMC 661, Operating Instructions Manual

Page: 11 / 56

1.2 Measuring system
A working system for level measurement comprises:
•
Prolevel FMC 661 transmitter,
•
Capacitance probe or hydrostatic sensor for level measurement with
appropriate electronic insert, see Chapter 2
•
If required, vibration sensor or capacitance probe for level limit detection or
automatic calibration correction.
The Prolevel may operate as a stand alone unit with standard 0/4
…
20 mA output; two
sets of two relays, freely assignable to channel 1 or 2, can be used to control pumps,
valves, annuciators etc.. Alternatively, the Prolevel may be operated remotely over the
optional Rackbus RS-485 interface, either direct from a personal computer or as part of
a process control system. Connection to Modbus, Profibus or FIP networks can be
realised through the gateways ZA 672, ZA 673 or ZA 674 respectively.
Versions The Prolevel is available in two versions:
•
With display and front panel controls,
•
Without display and front panel controls — in this case the transmitter must be
configured by the Commulog VU 260 Z handheld terminal or over the optional
Rackbus RS-485 interface.
In all other respects, the two versions are identical. More details on controls and operation
can be found in Chapter 3.
Hauser
PROLEVEL
FMC 671
1A
1B
2A
2B
3
Hauser
PROLEVEL
FMC 671
1A
1B
2A
2B
3
Hauser
PROLEVEL
FMC 671 123.4
1A
1B
2A
2B
3
H V
+
E
_
ZA 673
RACKBUS
PROFIBUS
FXA 675
ON
1
2
RB/485
BA142_04
Prolevel transmitters (and other units with Rackbus RS-485)
Rackbus RS-485
Personal computer with
operating software, e.g.
Commutool, Commuwin,
Commugraph
alternative
FXA 675 + ZA 67x
super
vi
sor
y
net
w
o
rk
RS
-485 adapter or
P
C
card
Fig. 1.3:
The Prolevel FMC 661 can be
used as a stand-alone unit, see
Figs 1.1 and 1.2 or as part of
an operating system.
A RS-485 adapter or PC card
allows direct connection to a
personal computer, the FXA 675
and gateway ZA 67x connection
to a supervisory system using
the Modbus, Profibus or FIP
protocol
Prolevel FMC 661 Chapter 1: Introduction
Hauser 7