在CPU的一个槽内安装一块合适型号的通信板，CPU就可以增加RS232C，RS422，或RS485端口
C200H-IP007
C200H-TS001
C200H-CN111
C200H-CP114
C200HX-CPU64-E
C200H-OA224
C200H-ATT03
C200H-OA223
C200HX-CPU65-E
C200HX-CPU44-E
C200HS-MP16K
C200HW-ME08K
C200H-ATTA3
C200HW-ME32K
C200H-DIN01
C200HS-CPU21-E
C200HW-PA204C
C200H-ID215
C200H-NC111
C200HW-DRM21-V1
C200H-CT001-V1
C200H-ID218
C200H-CN422
C200H-AD002
C200H-B7A21
C200H-PID01
C200H-OD212
C200H-BC051-V2
C200H-CN002
C200H-TC001
C200H-KS01E
C200H-DA003
C200H-BP001
C200H-BC081-V1
C200H-MAD01
C200H-IA221
C200H-TV101
C200HG-CPU43-ZE
C200H-OC222N
C200H-MR831
C200HS-CN222
C200H-OC221
C200H-SP001
C200H-CN131
C200H-MR433
C200H-OC226N
C200H-ID001
C200H-CN225
C200HG-CPU63-ZE
C200HS-CPU23-E