Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
The 170ARM37030 is a high-density discrete I/O module within the Modicon Momentum distributed automation family. This module is engineered for versatile signal management, featuring 10 discrete inputs and 8 relay outputs designed for operation in 24 V DC control environments.
As a key component for decentralized control architectures, this module bridges the gap between field sensors/actuators and the primary controller. While categorized as a Phase-Out product (effective since 2015), the 170ARM37030 remains a vital legacy component for supporting, expanding, and maintaining existing Modicon Momentum infrastructures where reliable relay-based output switching is required.
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Brand | Schneider Electric |
| Range | Modicon Momentum |
| Model | 170ARM37030 |
| Type of Product | Digital Module |
| Discrete Inputs | 10 |
| Relay Outputs | 8 |
| Supply Voltage | 24 V DC |
| Dimensions (LxWxH) | 26 cm x 18 cm x 9 cm |
| Weight | 0.52 kg |
| Product Phase | Phase-Out |
| Commodity Code | 85389091 |
Global Express Shipping
Returns & Warranty

The 170ARM37030 is a high-density discrete I/O module within the Modicon Momentum distributed automation family. This module is engineered for versatile signal management, featuring 10 discrete inputs and 8 relay outputs designed for operation in 24 V DC control environments.
As a key component for decentralized control architectures, this module bridges the gap between field sensors/actuators and the primary controller. While categorized as a Phase-Out product (effective since 2015), the 170ARM37030 remains a vital legacy component for supporting, expanding, and maintaining existing Modicon Momentum infrastructures where reliable relay-based output switching is required.
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Brand | Schneider Electric |
| Range | Modicon Momentum |
| Model | 170ARM37030 |
| Type of Product | Digital Module |
| Discrete Inputs | 10 |
| Relay Outputs | 8 |
| Supply Voltage | 24 V DC |
| Dimensions (LxWxH) | 26 cm x 18 cm x 9 cm |
| Weight | 0.52 kg |
| Product Phase | Phase-Out |
| Commodity Code | 85389091 |
Global Express Shipping
Returns & Warranty
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For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
France
|