Siemens SIMATIC S7-1500 Manual page 14

Tip: Using the potential jumpers
Use the potential jumpers supplied with the front connector if you want to distribute the 24V
DC supply voltage to a neighboring module. This helps you to avoid having to terminate two
wires to one terminal.
Proceed as follows:
1. Connect the 24 V DC supply voltage to terminals 19 and 20.
2. Insert the potential jumpers between terminals 19 and 39 (L+) and between terminals 20
3. Use the terminals 39 and 40 to loop the potential to the next module.
DQ 8x230VAC/5A ST Digital Output Module (6ES7522-5HF00-0AB0)
Manual, 07/2014, A5E03485590-AC
and 40 (M).
Figure 3-2 Using the potential jumpers
Note
Ensure that the maximum current load of 8 A per potential jumper is not exceeded.
Wiring
13