◇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
C200HX-CPU54-E
C200H-CPU02
C200HW-COM03-V1
C200H-MAD01
C200H-TC002
C200H-ASC02
C200HS-CN422
C200H-TV001
C200H-ID219
C200HW-CLK21
C200H-OD213
C200HW-ATTA3
C200H-NC211
C200H-IP007
C200H-CPU01
C200HS-CPU33-E
C200H-CPU03-E
C200H-DSC01
C200HS-INT01
C200HW-BI031
C200HW-ME08K
C200H-BC101-V2
C200HW-ME64K
C200HW-PA204R
C200H-CP114
C200H-MR832
C200HW-ME04K
C200H-OC226N
C200HW-BC051
C200HW-DRT21
C200H-CT001
C200H-ASC31
C200H-TV101
C200H-ATT51
C200HW-MC402-E
C200H-OA222V
C200HS-MP16K
C200H-OC224N
C200H-LK101-PV1
C200H-OC225
C200HG-CPU43-E
C200H-TL001
C200H-ATT03
C200H-ATTA3
C200HW-ATT53
C200HE-CPU42-ZE
C200H-OC226
C200H-PAR-EPTC210B
C200HW-ATT83
C200H-CT021