◇在上位机链接单元上，可以执行：
◇监视或改变PC的运行条件。
◇读写IR区域
◇提取或装入程序
◇一个CPU或扩展I/O单元上可以连接2个上位机链接单元，可使用RS-232C，RS-422和塑料护套光纤光缆
◇上位机链接单元可以连接可编程终端
◇运用C200HX/HG/HE的传输指令（TXD）通过PC启动来传输数据
C200HW-PRM21
C200H-ID218
C200HW-COM04-EV1
C200HW-ME64K
C200H-PAR-PTC219
C200H-OD217
C200H-DA004
C200H-IA222
C200H-TC001
C200H-CPU21
C200HW-COM01
C200HW-COM06-EV1
C200H-LK202-V1
C200H-DSC01
C200H-MP831
C200H-ME831
C200H-LK401
C200H-OC222N
C200H-B7AO1
C200H-ID501
C200HW-COM02-V1
C200HX-CPU44-E
C200H-CN211
C200HS-CN422
C200H-RT002-P
C200H-KS01S
C200H-ASC21
C200H-ATT53
C200H-PAR-EPTC210B
C200H-B7A22
C200H-OD213
C200H-OD21A
C200H-ASC11
C200H-DA002
C200H-RT201-C
C200H-ME431
C200HX-CPU64-E
C200H-IA221
C200HS-ME16K
C200HW-PA204C
C200H-CN425
C200H-CN521
C200HW-DRT21
C200HW-COM06-V1
C200H-TS102
C200H-MC221
C200H-OC222
C200H-RT201
C200H-CT021
C200H-IP006