PtPRS232通讯模块西门子模块6ES7540-1AD00-0AA0
¥14PtPRS232通讯模块西门子模块6ES7540-1AD00-0AA0
¥14PtPRS422/485模块西门子模块6ES7541-1AB00-0AB0
¥14PtPRS422/485通讯模块西门子模块6ES7540-1AB00-0AA0
¥12TMPTO4模块西门子模块6ES7553-1AA00-0AB0
¥16TMTimerDIDQ16x24V西门子模块6ES7552-1AA00-0AB0
¥17TMPosInput2模块西门子模块6ES7551-1AB00-0AB0
¥13TMCount2 x24V模块西门子模块6ES7550-1AA00-0AB0
¥15S7-1500DI16/DQ16模块西门子模块6ES7523-1BL00-0AA0
¥11S7-1500DI16模块西门子模块6ES7521-7EH00-0AB0
¥18S7-1500DI16模块西门子模块6ES7521-1FH00-0AA0
¥13S7-1500DI16模块西门子模块6ES7521-1BH50-0AA0
¥18S7-1500DI16模块西门子模块6ES7521-1BH10-0AA0
¥12