ABB DSAI 155 57120001-HZ热电偶模块
•开关A/B/C/D功能：为每个开关输入选择所需功能。有关每个功能的说明，请参见第2章“开关输入”。新需求周期、设定点访问、选择模拟输出和选择模拟输入、脉冲输入1、脉冲输入2、脉冲输入3、脉冲输入4、清除能量和清除需求功能一次只能分配给一个开关输入。如果试图将这些功能中的一个分配给多个输入，将显示闪烁消息“THIS SWITCH FUNCTION ALREADY ASSIGNED”（此开关功能已分配）。如果通过串行端口进行尝试，则不会出现闪烁消息，但会返回错误代码。•开关A/B/C/D激活：此设置点决定开关的操作顺序。如果开关输入从闭合转换为打开需要开关激活，则选择OPEN（打开）。如果开关输入从打开转换为闭合需要开关激活，则选择CLOSED（关闭）。
• SWITCH A/B/C/D FUNCTION: Select the required function for each switch input. See chapter 2 “Switch Inputs” for a description of each function. The NEW DEMAND PERIOD, SETPOINT ACCESS, SELECT ANALOG OUTPUT and SELECT ANALOG INPUT, PULSE INPUT 1, PULSE INPUT 2, PULSE INPUT 3, PULSE INPUT 4, CLEAR ENERGY and CLEAR DEMAND functions can be assigned to only one switch input at a time. If an attempt is made to assign one of these functions to more than one input, the flash message THIS SWITCH FUNCTION ALREADY ASSIGNED will be displayed. If an attempt is made via the serial port, no flash message will appear but an error code will be returned. • SWITCH A/B/C/D ACTIVATION: This setpoint determines the operating sequence of the switch. Select OPEN if a switch activation is required for a switch input transition of closed to open. Select CLOSED if a switch activation is required for a switch input transition of open to closed.
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