Siemens simatic ET 200MP - Parameters and Address Space; 4.1 Measuring Types and Ranges

Analog Input Module AI 8xU/I/R/RTD BA (6ES7531-7QF00-0AB0)
18 Manual, 03/2019, A5E44792324-AA
Parameters/address space
4
4.1 Measuring types and ranges
Introduction
The module is set to voltage measurement type with measuring range ±10 V by default. You
need to reassign the module parameters with STEP 7 if you want to use a different
measurement type or range.
Deactivate the input if it is not going to be used. The module cycle time is shortened and the
interference factors that lead to failure of the module (for example, triggering a hardware
interrupt) are avoided.
The following table shows the measurement types and the respective measuring range.
Table 4- 1 Measurement types and measuring ranges
Measurement type
Measuring range
Representation of analog values
Voltage ±50 mV
±500 mV
±1 V
1 V to 5 V
±5 V
±10 V
See Representation of analog values
in voltage measuring ranges
(Page 54)
Current 2WMT
(2-wire transmitter)
4 mA to 20 mA See Representation of analog values
in the current measuring ranges
(Page 55)
Current 4WMT
(4-wire transmitter)
0 mA to 20 mA
4 mA to 20 mA
±20 mA
Resistor
(2-wire connection)
PTC
See Representation of the analog
values of resistance-based sen-
sors/resistance thermometers
(Page 56)
Resistor
(3-wire connection)
600 Ω
6000 Ω
Thermal resistor RTD
(3-wire connection)
PT100 Stand-
ard/Climate
PT1000 Stand-
ard/Climate
Ni100 Stand-
ard/Climate
Ni1000 Stand-
ard/Climate
LG-Ni1000 Stand-
ard/Climatic
Disabled
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