Siemens SIMATIC ET 200SP HA, System Manual

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TBxxZ-Kyy+n_/T Meaning
n
Infeed: Number of supply terminal and type
e.g. 4M: 32 supply terminals for 24V and 4 supply terminals for ground
_ B=Power bus is connected to the left module
D=Power bus is interrupted to the left
/T T=Temperature detection possible
(This marking is only available for terminal blocks with temperature detection.)
Additional information
Additional information on assigning the terminals of the terminal blocks:
● Section "Hardware configuration (Page 28)"
● Section "Wiring rules (Page 85)"
● You can find information on the function and design of the respective terminal block in the
manual (download, see "Documentation guide for ET 200SP HA (Page 12)")
4.7.2 Forming potential groups
4.7.2.1 Forming potential groups by arranging terminal blocks
You form the potential groups by arranging the terminal blocks for the distributed IO system
ET 200SP HA.
Requirements
You can position terminal blocks when the following components of the IO device have been
installed:
● Carrier module for the interface module
● At least one carrier module for I/O modules
Rules for positioning terminal blocks
Start the assembly on the first carrier module for I/O modules to the right next to the carrier
module for the interface module.
Starting a potential group
● The first (left-hand) terminal block which you install in the IO device (on the first carrier
module to the right next to the interface module) is a light-colored terminal block.
● Connect the supply voltage to a light-colored terminal block.
● Each light-colored terminal block which you install in the IO device starts a new potential
group.
● The power bus is interrupted to the left.
Plant planning
4.7 Configurations of the slots of I/O modules
ET 200SP HA Distributed I/O system
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System Manual, 08/2019, A5E39261167-AD