Input And Output Modules Overview - Omni 4000 Series Installation Manual

The OMNI 7000 extended back panel is
illustrated in Figure 3-16.
•
Terminal blocks TB-1 through TB-10
provide signal I/O terminations.
•
The terminals on each terminal block
provide the same number of circuit paths
as the OMNI 7000 standard back panel.
•
TB-1 through TB-8 contain extra terminals
to provide DC power to various field
devices when the flow computer is powered
with AC. The terminals include:
−
DC+ power with fuses.
−
DC return.
−
Shield connections.
•
Screw-type terminals on the lower right and
left provide AC and DC input power.
Go to Section 8 for the electrical specifications
of the back panel, such as the transducer
output power.
3.6

Input and Output Modules Overview

The OMNI 4000/7000 flow computer functions by using the following I/O module types:
•
Digital I/O Multiplexer (DM)
•
Serial (S)
•
Dual Ethernet (DE)
•
Process I/O
The DM module provides inputs and outputs to control provers, samplers and injection pumps to
provide remote totalizing.
The S or DE modules provide Ethernet and serial ports to communicate with devices such as
printers, PCs, SCADA networks or other flow computers.
Process I/O modules provide the input and output of process measuring devices, such as
temperature and pressure transducers, densitometers, flow meters and provers.
3-17
OMNI 4000/7000 Installation Guide – Rev H
Installation
Figure 3-16: OMNI 7000 Extended Back
Panel