E53-C4DR4,0-20MA/RELAY OUTPUT E5CK
E53C4R4,
E53-C4R4,4-20MA/RELAY OUTPUT E5CK
E53CK01,
E53-CK01,控制器 RS-232 OPTION E5CK
E53CK03,
E53-CK03,RS-485 OPTION E5CK
E53-CKB,EVENT INPUT OPTION E5CK
