TM221ME16R Modicon M221 PLC 16 IO Relay Ethernet Controller

TM221ME16R – Modicon M221 Logic Controller

Compact 16‑I/O PLC with 8 relay outputs, Ethernet, and 24 V DC supply. Supports up to 7 expansion modules. Designed for small‑scale automation.

• Supply: 24 V DC (20.4…28.8 V)
• Discrete I/O: 16 (8 inputs, 8 relay outputs)
• Analogue inputs: 2 (0…10 V, 10‑bit)
• Ethernet: 10/100BASE‑T, Modbus TCP client/server
• High‑speed inputs: 4 (100 kHz, 32‑bit counter)
• Memory: 256 kB RAM + flash backup

Technical Data

• Model: TM221ME16R
• Series: Modicon M221
• Power consumption: ≤ 23.3 W (with expansions)
• Input impedance: 3.4 kΩ (digital), 100 kΩ (analog)
• Response time (fast inputs): 5 µs on/off
• Output current: 2 A per relay, 7 A per common
• Switching frequency: 20 operations/min max load
• Relay mechanical life: ≥ 20,000,000 cycles
• Real‑time clock: drift ≤ 30 s/month
• Protection: IP20, pollution degree 2
• Temperature: ‑10…55 °C (horizontal), ‑25…70 °C (storage)
• Weight: 0.264 kg | Dimensions: 70×90×70 mm

Installation & Maintenance

• DIN rail (TH35‑15/7.5) or panel mounting.
• Use shielded cables for fast inputs (max 10 m) and analog (max 1 m).
• Unshielded cables: digital I/O up to 30 m, outputs up to 30 m.
• Removable screw terminals for easy wiring.
• Diagnostic LEDs: PWR, RUN, ERR, BAT, I/O status.
• Firmware upgrade via USB (mini‑B) or SD card.

Compatibility

• Works with Modicon Quantum systems via Modbus.
• Expands with up to 7 M221 I/O modules.
• Supports Ethernet/IP adapter, Modbus TCP, and SoMachine‑Network.
• Programming via SoMachine (USB or Ethernet).

Certifications & Standards

• CE, CSA, cULus, RCM, EAC, DNV‑GL
• EN/IEC 61131‑2, 61010‑2‑201
• EMC: IEC 61000‑4‑2 (ESD), ‑4‑3 (radiated), ‑4‑4 (fast transients), ‑4‑5 (surge), ‑4‑6 (conducted)
• Class A radiated/conducted emissions per EN/IEC 55011

Package & Shipping

• Contents: TM221ME16R unit, terminal blocks, quick guide.
• Dimensions: 7.0 × 9.0 × 7.0 cm | Weight: 0.264 kg.
• 12‑month warranty – parts and labor.
• Dispatch: 24‑28 hours after order.
• Carriers: FedEx, UPS, DHL – worldwide express.

Typical Applications

• Small conveyor systems
• Packaging machines
• HVAC control panels
• Pump stations
• Lighting and access control

Diagnostic Capabilities

• Built‑in error log and I/O status LEDs.
• Real‑time monitoring via SoMachine.
• Watchdog and micro‑break immunity (10 ms).
• Battery (BR2032) backup for RTC and data (1 year at 25 °C).

Oiltech Controls’s Insight

This controller fits machines requiring relay outputs and Ethernet connectivity. The 100 kHz high‑speed inputs handle encoder or pulse signals. Its 7‑module expansion capacity adapts to growing I/O needs. We recommend it for retrofitting legacy relay‑based panels.

What Equipment Does It Suit?

• Small assembly stations
• Test benches
• Conveyor sections
• Packaging lines with simple logic
• HVAC air‑handling units

Professional FAQ

• Q: Can I use this PLC to replace a relay panel with 8 output points?
  A: Yes. The 8 relay outputs (2 A each) directly drive contactors, solenoids, or lamps. Check total common current (7 A).
• Q: How many expansion modules can I add, and what types?
  A: Up to 7 digital/analog or speciality modules. Expansion bus provides 0.52 A at 5 V and 0.46 A at 24 V.
• Q: What is the difference between fast and standard inputs?
  A: Fast inputs (I0, I1, I6, I7) have 5 µs response and 100 kHz counting. Standard inputs have 35 µs response. Use fast inputs for encoders or high‑speed sensors.
• Q: Is the Ethernet port suitable for SCADA connection?
  A: Yes. It supports Modbus TCP server/client and Ethernet/IP adapter. You can connect to HMIs or SCADA via standard protocol.
• Q: What backup options exist for program and data?
  A: Built‑in flash retains 256 kB. Optional SD card (2 GB) stores programs, data logs, and firmware updates. Battery backs up RTC.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spares.
• Global shipping – fast, tracked, insured.
• Tested surplus & refurbished options available.
• 12‑month warranty on every unit.
• Technical verification before dispatch.
• Expert support for obsolete control systems.

Inquiries: info@oiltechcontrols.com  |  +86 158 8020 0923

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