Power supply element
● Labeling strips
● U connector
● Universal front cover
Other components
The following component can be ordered separately:
Front connectors, including potential jumpers and cable ties
You can find additional information on accessories in the /ET 200MP The scalable measuring range is available for the temperature measuring ranges of thermal
resistors (RTD) standard and thermocouples (TC). The measuring ranges for voltage,
resistor and thermal resistor climatic are not supported.
Function
The scalable measuring range is a limited section of a measuring range supported by the
module.
It allows you to increase the resolution for a configurable section.
● The "Measuring range resolution" parameter determines the resolution to 2 or 3 decimal
places.
● The "Measuring range center" parameter determines the temperature over which the
scalable measuring range is symmetrically spanned.Temperature measurements and temperature controls with high resolution save energy and
are required for:
● Manufacturing of special glassManufacturing of semiconductors
● Heat processes / heat treatment in metals for the aerospace industryOverflow > 325.11 > 32.511 7FFFH
High limit 325.11 32.511 7EFFH
Measuring range center 0 0 0H
Low limit -325.12 -32.512 8100H
Underflow <-325.12 <-32.512 8000H
To obtain the absolute temperature, the measuring range center in the user program (as
offset) must be calculated with the value of the user data of the scalable measuring range.
The measuring range center is always output in the user data as the value "0". The user data
is correspondingly mapped to the bipolar input ranges in format. Underflow/overflow is
also formed in accordance with the limits of .The measuring range center must be within the nominal range of the underlying
measuring range. It is specified in integers.
● The scalable measuring range is spanned symmetrically over the measuring range
center. Depending on the resolution, different value ranges result.
● The scalable measuring range is limited by underflow and overflow of the underlying
measuring range:
If the low limit is violated, the scaled measuring range is cut off at the underflow.
If the high limit is violated, the scaled measuring range is cut off at the overflow

The following example shows the scaled measuring range with 2 decimal places for a
thermal resistor Pt 100 standard.

At the scaled measuring range with 2 decimal places, the measured value lies between -
325.12 K and +325.11 K around the measuring range center. In the figure, the measuring
range center is drawn at 300 °CThe following example shows the scaled measuring range with 2 decimal places for a
thermal resistor Pt 100 standard.
At the scaled measuring range with 2 decimal places, the measured value lies between -
325.12 K and +325.11 K around the measuring range center. In the figure, the measuring
range center is drawn at 850 °C.
The measuring range is cut off at 150.00 K, because the limit to the overflow has been
exceeded at 1000 °C (clipping).The example in the following figure shows the pin assignment for 2, 3 and 4-wire
connections of resistance-type transmitters or resistance thermometers4-wire connection CHx Channel or 9 x channel status
(green/red)
② 3-wire connection RUN Status display LED (green)
③ 2-wire connection ERROR Error display LED (red)
④ Analog-to-Digital Converter (ADC) PWR LED for power supply (green)
⑤ Electrical isolation
⑥ Backplane bus interface
⑦ Supply voltage via power supply element
⑧ Equipotential bonding cable (optional)
Figure 3-3 Block diagram and terminal assignment for 2, 3, and 4-wire connectiothermocouples for external/internal compensation and the connection of a resistance