GE IC693CHS391是Series 90-30可编程逻辑控制器（PLC）系列的轴定位模块（APM），它带有单轴控制，被用于实现伺服电机的运动和位置控制，并且可以配置为标准模式和跟随模式。在标准模式下配置时，此APM模块结合了PLC逻辑和IC693APU301的高性能运动控制。

GE IC693APU301 is an axis positioning module (APM) of the Series 90-30 programmable logic controller (PLC) series, with single axis control, used to achieve motion and position control of servo motors, and can be configured as standard mode and follow mode. When configured in standard mode, this APM module combines PLC logic and high-performance motion control of IC693APU301.