YOKOGAWA ALP121-S01 PROFIBUS-DP Communication Module

Description

The YOKOGAWA ALP121-S01 PROFIBUS-DP Communication Module is a core component of industrial automation control systems, belonging to the Yokogawa control system unit module series. Designed to communicate and exchange data with PROFIBUS-DP slave devices, it can be installed in field control units, ESB bus node units, and related bus-connected units to support industrial network integration.

Key technical specifications include a communication rate range of 9.6kbit/s to 12Mbit/s with automatic baud rate adaptation, allowing flexible configuration for different industrial scenarios: 12Mbit/s for short-distance high-speed communication such as workshop equipment interconnection, and 9.6kbit/s for long-distance networking such as cross-plant communication, with a maximum transmission distance of 1000 meters when using shielded cable at 9.6kbit/s.

Equipped with 1 PROFIBUS DP standard interface based on RS485 physical layer, it uses a Sub-D 9-pin male connector and supports shielded twisted pair differential transmission for strong anti-interference performance. The interface features short circuit protection, overvoltage protection, and can withstand ±15kV electrostatic discharge to prevent damage from industrial electromagnetic interference or wiring errors.

With compact dimensions of 40mm (width) × 125mm (height) × 120mm (depth) and a net weight of approximately 0.35kg, the module uses a flame-retardant ABS shell compliant with UL 94 V-0 standard, and can be directly mounted on a standard 35mm DIN rail for dense cabinet layout.