S20-AO-4

The Bosch Rexroth Indramat S20-AO-4 is a high-performance analog output module in the S20 IndraControl Modules series, designed to deliver precise signal control for industrial automation systems. This Analog Output Module features 4 output channels with a 12-bit resolution, ensuring accurate signal generation across its 0–10 V voltage range and 4–20 mA current span. It operates from a 24 VDC power supply and incorporates robust galvanic isolation between channels and logic to protect against interference and ground loops. Compact yet durable, the S20-AO-4 combines reliability with flexible performance, meeting the stringent demands of modern DIN rail-mounted control installations.

In terms of technical capabilities, the S20-AO-4 provides four fully independent analog outputs, each capable of both voltage and current signaling. The 12-bit resolution yields a fine granularity of 4096 discrete levels, while the 0–10 V output voltage range supports a wide variety of sensor and actuator interfaces. The 4–20 mA output current range complements voltage mode, enabling long-distance transmission with reduced noise sensitivity. With galvanic isolation between the output channels and internal logic, the module maintains signal integrity under challenging electrical conditions. Additionally, its solid construction weighs only 200 g, and its 120 mm x 75 mm x 45 mm footprint ensures minimal panel space usage.

Operationally, the S20-AO-4 excels in stability and reliability. Its DIN rail mounting design simplifies integration into control cabinets and automation racks, while the operating temperature range of ­20 °C to +60 °C guarantees performance in harsh environments. The module’s storage temperature range from ­40 °C to +85 °C provides resilience during transport and storage. Galvanic isolation not only protects the logic circuits but also extends the lifespan of connected devices by preventing surge-induced damage. Engineers will appreciate the module’s self-contained configuration that eliminates external isolation components, streamlining system architecture and maintenance.

Integration is straightforward: the S20-AO-4 seamlessly interfaces with S20 IndraControl controllers and third-party PLCs via standard analog I/O buses. Its compact form factor and DIN Rail mounting type accelerate installation in constrained control panels. The module’s robust design and precise output characteristics make it ideal for process control, machine tool automation, and other industrial applications where accurate analog signals are critical. As part of the S20 IndraControl family, the S20-AO-4 upholds Bosch Rexroth’s standards for durability, precision, and ease of integration in demanding industrial environments.