Endress+Hauser Silometer FMC 672 Z, Инструкция по установке и эксплуатации

Страница: 9 / 64

1.2 Measuring system
A working system for level measurement comprises:
•
Silometer FMC 672 Z/677 Z transmitter,
•
Capacitance or impedance probe
•
Electronic insert EC 37 Z or EC 47 Z.
The Silometer may operate as a stand alone unit with standard 0/4
…
20 mA and 0/2
…
10 V
outputs. Two relays, freely assignable to channel 1 or 2, can be used to control pumps,
valves, annuciators etc.. An alarm relay monitors the correct functioning of the
measurement point and trips on fault condition. If controlled remotely with other
Commutec transmitters within a process control system, the Silometer is addressed by
the Rackbus. 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:
•
FMC 672 Z with display and front panel controls, with remote configuration
facilities,
•
FMC 677 Z for remote configuration by Commulog VU 260 Z handheld
terminal or via ZA 67
…
/672 interface.
In all other respects, the two versions are identical. More details on controls and operation
can be found in Chapter 3.
BA064E04
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 FMC 672 Z/677 Z
can be used as a stand-alone
unit or as part of a process
control system
Silometer FMC 672 Z/677 Z Chapter 1: Introduction
7