Description

Here’s a detailed breakdown of the Samkoon S-E4AI4T PLC model based on naming
conventions and typical features of Samkoon’s product line:
Model Decoding
• S: Likely denotes the Standard Series or a compact PLC series.
• E4AI: 4 Analog Inputs (e.g., 0–10V, 4–20mA signals).
• 4T: 4 Transistor Outputs (typically 24V DC, NPN/PNP, for switching DC loads like
relays, LEDs, or solenoids).
• The “E” may indicate Expansion capability, Enhanced features, or compliance
with a specific standard (e.g., CE).
Key Specifications
1. I/O Configuration:
Analog Inputs (AI): 4 channels (supports voltage/current signals for
sensors like temperature, pressure, or flow).
▪ Resolution: Likely 12–16 bits (standard for industrial PLCs).
Transistor Outputs (T): 4 points (24V DC, 0.5–2A per point, suitable for
high-speed switching of DC loads).
Digital Inputs: May include additional digital inputs (check datasheet for
exact count).
2. Power Supply:
Operating Voltage: 24V DC (common for industrial PLCs).
Power Consumption: Low to moderate (depends on connected loads).
3. Communication:
Built-in Ports: Likely RS-485/RS-232 for Modbus RTU protocol
(integration with HMIs, SCADA, or other devices).
Ethernet Option: Some models include Ethernet for faster networking
(confirm if “E” implies Ethernet support).
4. Programming & Memory:
Software: Samkoon Pro or similar IDE (supports ladder logic, function
blocks, etc.).
Memory: Sufficient for small-to-medium automation tasks (program
storage and data logging).
5. Expandability:
May support expansion modules (e.g., additional analog/digital I/O,
communication modules).
6. Environmental Ratings:
Operating Temperature: -10°C to 55°C (industrial-grade reliability).
Certifications: CE, RoHS, and possibly IP20 protection (dust/splash
resistance).
Typical Applications
• Process control systems requiring analog signal acquisition (e.g., temperature
monitoring, pressure sensing).
• Small automation setups with mixed I/O needs (e.g., combining sensor inputs and
actuator control).
• Integration with HMIs (e.g., Samkoon’s touch panels) for real-time data
visualization.
Important Notes
1. Analog Inputs: Ensure compatibility with sensor types (voltage/current) and use
shielded cables to reduce noise.
2. Transistor Outputs: Add external protection (e.g., flyback diodes) for inductive
loads (relays, solenoids).
3. Verify Specifications: Always consult the official Samkoon datasheet for exact
I/O counts, communication protocols, and firmware details.