ADLINK PCI-8164 - Manual (Page 47)

Installation 35
2.17 Switch setting for EL Logic
The S1 switch sets the EL limit switching type. By default the EL
switch is set to ON, which is the “normally open” position (or "A"
contact type), while OFF is the “normally closed” position (or “B”
contact type).
For safety reasons, you must set a type that will make the end-
limit active when it is broken or disconnected.
NOTE MPC-8164 uses a software function for this setting.