Pilz PSS Series Operating Manual page 26

Fig. 5-4: Example: Single-channel, failsafe input device, with test pulse
Please ensure safety regulations and EMC guidelines are met!
Operating Manual: PSS(1) DI2O Z
*With cable runs > 200 m
Test pulse
0
1 kΩ*
Single-
channel,
failsafe
input device
Additional
input
devices
5-9