RMG ERZ2000-NG, Operating Manual

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1 About this manual
Manual ERZ 2000-NG · EN07 · 2019, May 13th
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1.4 Overview
The ERZ2000-NG, therefore, is an advancement of the ERZ2000 as a half 19" slide-
in module (half 19" width). The ERZ2000-NG system has a configuration consisting
of 2 function groups with a clear separation between the functions of measurement
value determination, quantity conversion, registration and basic tasks. The first func-
tion group, the
basic assembly , provides the quick measurement recording, all in-
puts and outputs, all interfaces and manual operation via the front panel
or via the wizard.
Figure 2: System configuration overview
The high measuring accuracy in the quantity calculation is implemented with the
basic assembly. All accuracy-relevant parameters are assigned to this assembly and
are stored here. This assembly thus determines the accuracy of the inputs and out-
puts, their temperature curve and thus the accuracy of the overall device. The digital
data interfaces are also provided on the basic assembly. These interfaces can be
used as a service interface, as a DSfG bus system in accordance with the current
specifications for flow computers and registry instance, as a DSfG control station, as
a Modbus for external data transmission, as Ethernet TCP/IP network connections
and as a connection for an external modem.
The basic assembly is designed for measurement and recording of all inputs; no cal-
culations or assignments to physical variables take place. The basic assembly con-
tains analogue values, frequencies and totalizer content only - without assigning
meaning to the individual values.
These measurements are transmitted to the computing unit in which they are as-
signed to physical variables and can be converted into practical data. All outputs and
data interfaces are also operated from the basic group. An additional task is the read-
ing of controls on the front panel and the display of measurements and parameters
on the display. There are three reserve slots for hardware extensions.