6SL3130-6TE21-6AA4西门子S120智能线输入模块6SL31306TE216AA4 ¥7000.00 1P 7MH4960-2AA01西门子S7-1200 PLC模块 称重模块7MH496O-2AAO1 ¥2000.00 1P 6ES7137-6AA00-0BA0西门子ET200SP通信模块6ES71376AAO1OBAO ¥1500.00 6ES7288-1CR40-0AA0西门子PLC模块288-1CR40-OAAO 24输入/16输出 ¥500.00 SIMATIC S7-200 SMART CPU CR40s AC/DC继电器24DI/16DQ/1CR40 ¥450.00 1P 6ES7288-1CR40-0AA1西门子SMART200 6ES7288-1CR40-0AA0 ¥500.00