罗克韦尔AB A-B-1420-V2-ENT控制器

可以为所有测量量设置报警条件。这些包括过电流，

欠电流、中性电流、电流不平衡、电压不平衡、相位反转，

过频、欠频、功率因数、开关输入等。报警信息包括

以简单易懂的英文格式显示。PQM配备了一个使用Modbus或DNP 3.0的标准RS485端口

协议。这可用于集成过程、仪表和电气

通过将PQM仪表连接到DCS来满足工厂自动化系统的要求

或SCADA系统。运行EnerVista PQM Setup的PC可以更改系统设定点和

监控值、状态和报警。持续监控最大限度地减少了过程停机时间

通过立即识别由于故障或增长变化而导致的潜在问题。四个隔离的4至20 mA（或0至1 mA，取决于安装选项）模拟输出

可更换多达八个传感器。输出可以分配给任何

PLC直接接口的测量参数。

Alarm conditions can be set up for all measured quantities. These include overcurrent,

undercurrent, neutral current, current unbalance, voltage unbalance, phase reversal,

overfrequency, underfrequency, power factor, switch inputs, etc. The alarm messages are

displayed in a simple and easy to understand English format.The PQM is equipped with one standard RS485 port utilizing the Modbus or DNP 3.0

protocols. This can be used to integrate process, instrumentation, and electrical

requirements in a plant automation system by connecting PQM meters together to a DCS

or SCADA system. A PC running EnerVista PQM Setup can change system setpoints and

monitor values, status, and alarms. Continuous monitoring minimizes process downtime

by immediately identifying potential problems due to faults or changes from growth.Four isolated 4 to 20 mA (or 0 to 1 mA depending on the installed option) analog outputs

are provided that can replace up to eight transducers. The outputs can be assigned to any

measured parameters for direct interface to a PLC.