Connecting the 24 VDC negative logic TSX DEY 16A2 module
(Original Document)
At a Glance
The TSX DEY 16A2 module can be use in direct current with its 16 inputs in negative logic.
This module is fitted with a removable connection terminal block for the connection of inputs.
Module connection
The following diagram shows the connection of the module to the sensors.
FU1 
0.5 A quick-blow fuse
NOTE: When the 0 V sensor is grounded, it is not recommended to use the negative logic. If a wire should accidentally become disconnected and come into contact with the mechanical ground, this might set the input to 1, which could create an accidental command.