ADwin HSM-24V

Low Speed Discrete I/O Module

  • Provides 32 Channels of 24 VDC Digital I/O
  • Compatible With Light-16, Gold-II and Pro/Pro-II Systems
  • System Support for up to 15 HSM Modules
  • Perfect for Interfacing to Relays, Solenoids, Switches, etc.

Call for configuration and price. 1-800-956-4437

SKU: HSM-24V Category:


The ADwin HSM-24V Module provides 32 digital channels which process 24V signals and is operated on the LS bus.

The 32 channels can be set to inputs or outputs in groups of 8. After power-up, all channels are set as inputs.

The module requires an external supply voltage of 19V… 29V. The supply connector plug is placed bottom right (see fig. 3) on the module and has 2 pins each for Vcc and GND. The supply voltage is led to a fuse (5A, delay-action).
Both ground pins are connected to protection earth PE. The supply connection is reverse polarity safe.

The channels are designed to process 24V signals typically and are short-circuit-proof. A signal above 82% of supply voltage is processed as High level, a signal below 66% as Low level. For each channel, there is a LED indicating the status: LED on relates to High level.

The channels have a permissible operation current of 0mA…150mA. If the current exceeds 500mA at a channel, the channel is automatically switched off. An over-current in the range of 150mA…500mA may activate the superheating
protection of the driver, i.e. the driver is switched off, including the corresponding 16 channels.

Each 4 channels have a common GND. The input/output wires are connected to plug-in blocks of binding posts.

The inputs have a filter causing about 12μs signal delay.

The ADwin HSM-24V Module is easily snapped onto the DIN top-hat rail. The module may be processed inside a control cabinet only (industrial use).


The module HSM-24V provides 32 digital inputs/outputs for 24 V level and links ADwin up to e. g. the world of SPS-like signals.

Via an ADwin LS bus interface up to 15 HSM modules may be operated with an ADwin system. For example, ADwin-light-16 can be extended by up to 480 digital channels using HSM modules. ADwin-Gold II can be operated with 960 extra digital channels, and ADwin-Pro I and ADwin-Pro II can even deal with up to 14,400 channels.

The module HSM-24V is designed for industrial use in a switch cabinet and is easily snatched on to the top hat rail. The plug-in blocks of binding posts considerably facilitate the input/output wiring in the control cabinet. The module is run with a supply voltage of 19 V… 29 V DC as is common with switch cabinets.

The 32 channels can be set to inputs or outputs in groups of 8. For each channel, there is a LED indicating the real voltage level (High or Low). Each output may deliver up to 150 mA and is designed to short-circuit proof, input channels are designed for over-current proof.