以下是关于电磁预置计数器（减位）JDM7-51S的产品中英文介绍：

JDM7-51S电磁预置计数器是一种广泛应用于工业领域的计数设备，其采用电磁驱动原理，工作稳定可靠，能够满足不同工业环境下的计数要求。该计数器具有手动复位功能，可通过按键进行复位操作，使用灵活方便。其预置范围为1-9999，累计容量为0-99999，能够满足大多数生产场景中的计数需求。在计数过程中，当达到预置数值时，计数器会触发微动开关触点换接，从而实现自动化控制功能。此外，该计数器外形结构紧凑，安装方便，可广泛应用于印刷、纺织、机械等行业的计数控制场景。

The JDM7-51S electromagnetic preset counter is a counting device widely used in the industrial field. It adopts the electromagnetic driving principle, which ensures stable and reliable operation and can meet the counting requirements in different industrial environments. This counter has a manual reset function, allowing flexible and convenient use through button operations. With a preset range of 1-9999 and a cumulative capacity of 0-99999, it can meet the counting needs of most production scenarios. During the counting process, when the preset value is reached, the counter will trigger the microswitch contact to switch, thereby realizing the automation control function. Moreover, the compact structure and easy installation of this counter make it widely applicable in counting control scenarios in industries such as printing, textile, and machinery.