Potential Group; Measurement Type/Measuring Range - Siemens SIMATIC ET 200SP HA Equipment Manual

5.4.3

Potential group

Definition
A potential group consists of a group of directly adjacent I/O modules within an ET 200SP HA
station that are supplied via a common supply voltage.
Description
A potential group is built up from left to right by using terminal blocks.
A new potential group starts on the left side with a light gray terminal block, via which the supply
voltage for the potential group is fed in.
The potential group is continued to the right with dark gray terminal blocks and ends when a
new potential group is built up next to it.
The potential group also ends if there is a black terminal block next to it. Black terminal blocks
are fed individually and cannot be included in potential groups.
You can find additional information on the configuration of the potential group in the system
manual SIMATIC; Distributed I/O System; ET 200SP HA.
5.4.4

Measurement type/measuring range

Definition
With the measurement type, a current measurement type is selected and a channel is
deactivated or enabled as a sensor supply.
You can choose between different measuring ranges with an active channel.
An overview of the measuring ranges and the overflow, overrange, etc. can be found in
appendix "Analog value display in the current measurement range 0 to 20 mA (Page 85)".
Description
The I/O module has the following measuring ranges:
Measurement type
Disabled
Current (2-wire trans‐
ducer)
Current (4‑wire trans‐
ducer)
AI 4xI 2-/4-wire HART ISOL HA
Equipment Manual, 07/2022, A5E50101523-AB
Measuring range
--
0 to 20 mA
4 to 20 mA
4 to 20 mA HART
0 to 20 mA
4 to 20 mA
4 to 20 mA HART
5.4 Explanation of the module/channel parameters
Resolution with interference frequency suppression for 10, 50 and
60 Hz
16 bits including sign
Parameters
--
25