因為PLC在執(zhí)行此操作時會發(fā)生不同步的現(xiàn)象，所以會在執(zhí)行SVC_REQ#43命令時產(chǎn)生一個錯誤日志。如果存在重要數(shù)據(jù)傳輸，不受這個功能塊的影響?？赡茉谑鼓苓壿嬛杏玫絊VC_REQ#43功能。–個帶有非傳輸變量的節(jié)點應該包含在此使能邏輯中。這會使該功能塊直接被控制，不會被激活單元傳遞的數(shù)據(jù)所控制。如果在一個程序的掃描周期內(nèi)里多次使用這個功能塊，最后一次的調(diào)用會起作用。

NORTEL MERIDIAN NT6D39AA CHASIS WITH COMMON EQUIPMENT M

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Branson 402 Ultrasonic Welder Converter + 1-1/2″ Adapte

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ADC VIDEO SYSTEMS HWRM3RX4ZN0SPC Homeworx Quad Receive

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MULTIVAC 86.850.0400.10 CIRCUIT BOARD

MULTIVAC 86.850.0400.11 CIRCUIT BOARD

MULTIVAC 86.850.0600.02 CIRCUIT BOARD

MULTIVAC 86.850.1100.01 CIRCUIT BOARD

MULTIVAC 86.850.1500.12 CIRCUIT BOARD

MULTIVAC 86.850.0600.02 CIRCUIT BOARD Module

MULTIVAC 86.850.0200.03 CIRCUIT BOARD

MULTIVAC 86.850.0600.02 CIRCUIT BOARD Card

MULTIVAC 86.850.0600.12 CIRCUIT BOARD

MULTIVAC 86.850.1000.00 CIRCUIT BOARD

MULTIVAC 86.850.1100.00 CIRCUIT BOARD