“Extendable” logic
   controller versions
XD10 (6 inputs, 4 outputs)
XD26 (16 inputs, 10 outputs)


              


Digital extensions
XR06 (4 inputs, 2 outputs)
XR10 (6 inputs, 4 outputs)
XR14 (8 inputs, 6 outputs)



              



 10-bit analog extension
XA04 (2 inputs, 2 outputs)

  Digital sandwich extension
XE10 (6 inputs, 4 outputs)