1756-L63LOGIX555处理器模块1756-L62LOGIX5555处理器模块2M内存1756-L55M14LOGIX5555处理器模块3.5M内存1756-A77槽机架1756-PA7585-265VAC电源1756-PA75R85-265VAC冗余电源1756-IB1610-31VDC16点输入模块,20针1747-L541SLC5/04处理器模块,16K内存,DH+和DH-485/RS232口1746-NI8模拟量输入模块8路差分1746-P2220VAC5A电源1746-OB1624VDC/0.5A16点输出模块源流1746-M1364KFLASH存储模块1746-NI16I模拟量输入模块16路+/-20MA1756-ENBT以太网通信接口模块