Description
The ControlByWeb® X-15S™ is an eight digital input expansion module designed to add reliable status monitoring to an X-400™ or X-600M™ controller. Featuring 8 optically isolated digital inputs, the X-15S provides electrical separation between field equipment and low-voltage control circuits, helping improve safety and reduce the risk of ground loop interference in industrial environments.
Multiple X-15S modules can be connected via ribbon cable for power and communication, making it a scalable solution for larger systems. This module is well suited for applications such as alarm panel integration, equipment status monitoring, safety interlocks, facility automation, storage facilities, and access control.
Key Features
- 8 Optically Isolated Digital Inputs: Adds eight reliable input channels for status monitoring and control.
- Input Functions: Supports Monitor State, Control Relays, Control Remote Relays, Count, Frequency, High Time, and ON Time.
- Flexible Expansion: Connect multiple X-15S modules to an X-400™ or X-600M™ controller as needed.
- Powered Through Expansion Bus: No separate power supply connections are required.
- LED Input Status Indicators: Includes 8 LEDs for inputs 1 through 8, plus a power indicator.
- Industrial Monitoring Applications: Ideal for door sensors, digital pulse meters, button and switch inputs, machine status, and more.
- Removable Terminal Connector: Simplifies installation and wiring.
- Reliable Isolation: Helps protect control systems in demanding industrial environments.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | X-15S |
| Product Type | Eight Digital Input Expansion Module |
| Compatible Controllers | X-400™ or X-600M™ |
| Number of Inputs | 8 |
| Input Type | Optically-Isolated |
| Input Voltage Range | 3–26 VDC |
| Input Current | 0.6 mA @ 3V, 8.2 mA @ 26V |
| Minimum Hold Time | 2.5 mS |
| Input Isolation | 1500 V |
| Input Functions | Monitor State, Control Relays, Control Remote Relays, Count, Frequency, High Time, ON Time |
| Maximum Count | 32-bit |
| Max Count Rate | 200 Hz |
| Edge Trigger | Rising, Falling, or Both |
| High Time | Pulse width (4,194,304 seconds max) |
| On Time | Accumulated time an input is asserted (4,194,304 seconds max) |
| Frequency | 1 Hz min, 200 Hz max |
| Power Requirements | 9–28 VDC (supplied via the X-400 or X-600M controller, 24V recommended) |
| Current Draw at 9 VDC | 17 mA (all opto-couplers off) / 88 mA (all opto-couplers on) |
| Current Draw at 12 VDC | 13 mA (all opto-couplers off) / 66 mA (all opto-couplers on) |
| Current Draw at 24 VDC | 8 mA (all opto-couplers off) / 36 mA (all opto-couplers on) |
| Connectors | Inputs: 12-position, 3.81mm terminal spacing, removable, for 16–28 AWG wire Expansion Connector: Ribbon cable, 10-conductor, polarized, 2×5-position, 0.100″ pitch, RS-485 communications |
| LED Indicators | 9 LEDs: Power on, Digital Inputs 1–8 |
| Dimensions | 1.41 in W x 3.88 in H x 3.1 in D (35.7 x 98.5 x 78 mm, not including connector) |
| Weight | 4.8 oz (136 g) |
| Enclosure Material | Lexan 940 Polycarbonate Plastic |
| Flame Rating | UL94 V0 |
| Operating Temperature | -40°F to 150°F (-40°C to 65.5°C) |
| Storage Temperature | -40°F to 185°F (-40°C to 85°C) |
| Humidity | 5–95%, non-condensing |
| Altitude | Up to 2,000 m |
| Installation Location | Indoor use or NEMA-4 protected location |
| Electromagnetic Compliance | IEC CISPR 22, CISPR 24, FCC 47CFR15 (Class B), EN55024 ITE Immunity (2010), EN55022 Emissions (2010) |
| Product Safety Compliance | UL: E468316-A1 61010-1 3rd Edition, CSA: C22.2 No. 61010-1-12 3rd Edition, CCN: QUYX, QUYX7 |












Brian James Bobula (verified owner) –
Brian James Bobula (verified owner) –
Very versatile
James (verified owner) –
versatile