
1.2
Measuring system
A working system for level measurement comprises:
•
Silometer FMC 671 Z/676 Z transmitter,
•
Capacitance, impedance or Deltapilot S probe (hydrostatic pressure sensor)
•
Electronic insert
For limit switching a capacitance, impedance or vibration probe is used.
The Silometer may operate as a stand alone unit with standard 0/4
…
20 mA and 0/2
…
10 V
output. Two relays, freely assignable to channel 1 or 2, can be used to control pumps,
valves, annuciators etc.. Alternatively, the Silometer may be controlled remotely with other
Commutec transmitters via the Rackbus as part of a process control system. In this case,
communication is controlled by a ZA 672 Modbus Gateway, see Fig 1.3, or any other ZA
67
…
Gateway.
Versions
The Silometer is available in two versions:
•
Silometer FMC 671 Z with display and operation via the front panel, and via
the handheld terminal Commulog VU 260 Z and Gateway ZA 67...
•
FMC 676 Z for remote configuration by Commulog VU 260 Z handheld
terminal or via ZA 67
…
interface.
In all other respects, the two versions are identical. More details on controls and operation
can be found in Chapter 3.
BA063E04
Commutec transmitters
Rackbus
Personal
computer or
PC system
Programmable logic
controller with Modbus port
Sensors
Actuators
RS-232C interface
Modbus interface
ZA 370
or
ZA 371
ZA 672
Fig. 1.3
The Silometer 671 Z/676 Z can
be used as a stand-alone unit,
or as part of a process control
system.
Silometer FMC 671 Z/676 Z
Chapter 1: Introduction
7
Содержание silometer FMC 671 Z
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