S20-DI-32/1 Bosch Rexroth Indramat
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MPN: R911172533
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The Bosch Rexroth Indramat S20-DI-32/1 is part of the S20 IndraControl Modules series and features 32 inputs with a nominal input voltage of 24 V DC. It uses a push-in connection method, supports 1-conductor technology, and has an IP20 protection rating. The module offers a maximum input frequency of 5 kHz, a width of 53.6 mm, and a height of 126.1 mm.
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Product Description:
The S20-DI-32/1 is a digital input module manufactured by Bosch Rexroth Indramat for the S20 IndraControl Modules series. Designed for mounting in an S20 I/O station, the unit transfers field-level sensor signals to the controller through the local bus. It allows a PLC to monitor switches, proximity sensors, or encoder states in distributed automation cells. By translating sensor voltage levels into bus data, the module serves as a compact interface between machinery and IndraControl logic.
Each input is rated for a nominal supply of 24 V DC and draws a typical current of 2.4 mA, matching EN 61131-2 Type 1 and Type 3 characteristics. The module provides 32 channels that can capture on-and-off transitions at frequencies up to 5 kHz, allowing fast photoelectric sensor or incremental encoder pulses to be transferred without loss. Internal preprocessing refreshes the process image in under 100 µs, which keeps controller reaction times short even when many modules are connected to the station. Converted data move to the head station across the local bus at 100 Mbps, helping prevent bandwidth saturation when several I/O cards operate simultaneously. Four input bytes form the addressable data area, while three bytes are reserved for parameters such as filter time and wire-break detection.
Wiring is completed through push-in terminals that accept single conductors, and the housing has an IP20 protection rating for installation inside a control cabinet. The module measures 53.6 mm in width and 126.1 mm in height, allowing a large number of input points to occupy limited DIN rail space compared with separate terminal blocks. The electronics draw only 60 mA from the 5 V local-bus supply provided by the coupler, leaving current capacity available for adjacent nodes. The maximum input address area and required parameter data follow the format used by other S20 digital modules, allowing the station coupler to map the module alongside neighboring I/O devices.
