PLC type A2NCPUP21 Programming Manual(Fundamentals)(PLC A2NCPUP21编程手册(基础))
PLC type A2NCPUP21 (A Mode) Programming Manual(Common Instructions)(PLC A2NCPUP21编程手册(常用指令))
Programmable Controller A2NCPUP21 User''s Manual (CPU A2NCPUP21用户手册)
A2NCPUP21 Training Manual(A2NCPUP21培训手册)