his manual explains the specifications and part names of:

• Pt100 Input Module Type A68RD3N (hereafter abbreviated to the A68RD3N)
• Pt100 Input Module Type A68RD4N (hereafter abbreviated to the A68RD4N)
• Pt100 Input Module Type A1S62RD3N (hereafter abbreviated to the A1S62RD3N)
• Pt100 Input Module Type A1S62RD4N (hereafter abbreviated to the A1S62RD4N)

which are used with the MELSEC-A series PLC CPU module (hereafter
abbreviated to the PLC CPU).
(The A68RD3N, A68RD4N,