Manufacturer：PCD4.A820
Modules: Input/output elements housed in a casing, compatible with the PCD1/2 system.
Module holders: Devices such as CPUs, RIOs,
Manufacturer：PCD4.B900
Modules: Input/output elements housed in a casing, compatible with the PCD1/2 system.
Module holders: Devices such as CPUs, RIOs,
Manufacturer：PCD4.B901
Modules: Input/output elements housed in a casing, compatible with the PCD1/2 system.
Module holders: Devices such as CPUs, RIOs,
Manufacturer：PCD4.C100
Modules: Input/output elements housed in a casing, compatible with the PCD1/2 system.
Module holders: Devices such as CPUs, RIOs,
Manufacturer：PCD4.C110
Modules: Input/output elements housed in a casing, compatible with the PCD1/2 system.
Module holders: Devices such as CPUs, RIOs,
