现货AAI543-S50模块 电流输出模块（隔离）

*1: Use two modules with the same suffix code foruse in dual-redundant configuration.

*2: When AAI543-□1□ is installed in a remote node, the ambienttemperature should be 0 to 60°C.

*3: The time during which the output to the fieldfalls below 4 mA at switch-over is 100 ms at maximum for AAI543-□0□(standard response) and 2 ms at maximum forAAI543-□1□ (fast response).When anyfast response field devices are connected to dual redundantly configuredmodules, AAI543-□1□ (fast response)should beused.

*4: The withstanding voltage for using thededicated cable is 500 V AC (between the input signal and the system).Thewithstanding voltage for using MIL connector cable depends on the electricalspecifications of its cable.

*5: When installing the module with HART functionto a remote node, the firmware of EB401 must be Rev 2 or later.For HARTfunction specifications, refer to “HART Communication Package (for A□I□□□-H) (GS 33Q03L70-31E).”

AAI543-S50模块输出4至20 mA。

分散控制系统：（DCS，即Distributed Control System），又叫集中分散控制系统，简称集散系统，也称其为分布式控制系统，它是利用计算机技术、控制技术、通信技术、图形显示技术实现过程控制和过程管理的控制系统，它以多台微机分散应用于过程控制，通过通信总线、CRT显示器，键盘、打印机等又能高度集中地操作、显示和报警。