Siemens 6NH7800-4AA30

The Siemens product with catalog number 6NH7800-4AA30 is the SINAUT ST7 TIM 43 communications processor. Designed for use with the SIMATIC S7-300 and S7-400 controllers, it supports communication via the MPI interface and includes RS232/RS485 connectivity. This processor is intended to connect external modems or wireless devices and works in conjunction with the internal MD3 modem for analog dial-up communication. Although this model was discontinued as of January 2018, it can still be sourced through BSP Automation.