Extending the potential group
● Each dark-colored terminal block passes the supply voltage connected on the light-colored
terminal block to the I/O modules and to the dark terminal block positioned to the right of it.
● The power bus is continuous.
Replacing a terminal block with another terminal block type
● When you position a light-colored terminal block on the left next to a dark-colored terminal
block, the light-colored terminal block interrupts the power bus to the left and starts a new
potential group at the same time.
You can find additional information on this in the section "Replacing a terminal block
(Page 125)".
Load current
● You can find information on this in the section "Hardware configuration (Page 28)".
Plant planning
4.7 Configurations of the slots of I/O modules
ET 200SP HA Distributed I/O system
System Manual, 08/2019, A5E39261167-AD 35
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