The KOYO E-01T-4157 is a robust and reliable 16-point discrete output module, designed as a crucial expansion unit for the DirectLOGIC series of Programmable Logic Controllers (PLCs) from KOYO Electronics (now part of AutomationDirect). Catalogued as part number J-03 #3, this module provides essential output connectivity for controlling actuators, relays, solenoids, and indicators in industrial automation systems.
As a legacy component for proven KOYO/DirectLOGIC systems, this E-01T-4157 output module is essential for maintenance, repair, and extending the lifecycle of existing automation infrastructure.
Key Features & Benefits
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High-Density Output: Provides 16 discrete output points in a single slot, maximizing control capability within a compact footprint.
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Reliable Design: Built for industrial environments with protection against electrical noise and stable performance for long-term operation.
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DirectLOGIC Compatibility: Seamlessly integrates with KOYO DL05, DL06, DL105, DL205, DL305, and DL405 series PLC CPUs as a standard I/O expansion module.
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Easy Installation: Uses the standard KOYO I/O bus for simple plug-and-play expansion. Modules lock securely onto the base unit or existing module.
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Status Indicators: Features LED indicators for each output point and system power, enabling quick diagnostics and troubleshooting.
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Legacy System Support: Ideal for maintaining and servicing existing KOYO/DirectLOGIC automated systems without a costly full-system overhaul.
Technical Specifications
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Manufacturer: KOYO Electronics / AutomationDirect
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Part Number: E-01T-4157
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Alternative ID: J-03 #3
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Module Type: Discrete Output Module
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Number of Points: 16
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Output Type: Solid-State (Transistor) – Verify voltage type (Sourcing/Sinking) based on exact suffix/application.
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Voltage Rating: Commonly 12-24VDC (Please confirm exact specifications for your model variant).
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Current Rating per Point: Typically 0.5A – 1A (Point and common bank maximums apply).
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Compatibility: DirectLOGIC Series PLCs (DL05, DL06, DL105, DL205, DL305, DL405).
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Status Indicators: Power LED and per-point output ON/OFF LEDs.
Applications
This output module is used to control a wide variety of industrial devices, including:
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Motor Starters & Contactors
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Solenoid Valves & Cylinders
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Control Relays & Alarms
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Pilot Lights & Indicator Lamps
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Small DC Loads
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Legacy Machine Control Panels
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Material Handling & Packaging Systems









