2. Key Selling Points

1. High-Performance Communication Processor: A signal board (SB) for the Siemens S7-1200 PLC, specifically designed to enhance industrial communication with two independent RS485 serial interfaces, significantly increasing the PLC's connectivity to multiple devices.
2. Dual Independent Serial Ports: Features two fully independent RS485 interfaces that can simultaneously connect to different types of serial devices (e.g., drives, instruments, HMIs), each with separate protocol and parameter settings, enabling parallel data exchange and improving system efficiency.
3. Support for Industry-Standard Protocols: Both ports support MODBUS RTU (master/slave mode), ensuring compatibility with a wide range of industrial field devices for fast and seamless integration into existing automation systems.
4. Plug-and-Play, Space-Saving Design: Designed as a compact signal board that plugs directly into the front-mounted SB slot on the S7-1200 CPU—no additional wiring or power required. Preserves the right-side expansion slots, maximizing panel space utilization.
5. Flexible Networking & High Expandability: Ideal for complex applications requiring simultaneous communication with multiple serial devices (e.g., multi-drive control, data acquisition systems), greatly enhancing communication flexibility and scalability without increasing system footprint.

Boxun (Hong Kong) Technology Co., Ltd. is a trading company specializing in PLC modules, controllers, frequency converters, servo motors, drives, sensor switches, relays and other industrial control products. Our Main brands INCLUDE Siemens, Mitsubishi, Omron, ALLEN-BRADLEY, Schneider, ABB, YASGAWA.Panasonic, IFM, P+F, etc...We have been engaged in foreign trade for 10 years. Our products have sufficient inventory to enjoy the fastest delivery speed after customers order, and provide customers with high-quality products and high-quality service. We will strive to exceed customer expectations for product requirements. Customers will benefit from our warm, friendly service and professional assistance. We are very much looking forward to working with you.