這是一個比較古老的PLC，不知有沒有人用過它，我有問題想請教。

I remember the PC0085.  I do not remember any "software" with it!  It used a
handheld, dedicated programmer, either the PP-0105 or PP-0110 programmer.
Programming the PC0085 via a PC with programming software -- I think such
was never made available.

Modicon plc

以上資料網上找到的，你自己理解一下吧。