Introduction

The Schneider TM221ME16R Logic Controller Module is part of the Modicon M221 PLC family, developed for industrial automation applications requiring dependable control, flexible communication, and efficient cabinet integration. Combining 16 integrated I/O points, relay outputs, analog input capability, Ethernet connectivity, and TM3 expansion support, it provides a versatile solution for machine builders and automation engineers.

Designed for compact automation environments, the TM221ME16R delivers reliable performance for machines that require stable switching control and straightforward system expansion. Its Ethernet-enabled architecture makes it a strong choice for connected automation systems where efficient communication and easy maintenance are important.

Technical Specifications

Parameter	Specification
Brand	Schneider Electric
Model Number	TM221ME16R
Product Type	Logic Controller Module
Product Range	Modicon M221
Controller Type	Compact PLC
Rated Supply Voltage	24 VDC
Supply Voltage Range	20.4...28.8 VDC
Integrated I/O Number	16
Digital Inputs	8
Input Type	24 VDC Sink/Source
Analog Inputs	2
Analog Input Range	0...10 V
Analog Resolution	10 bits
Relay Outputs	8
Output Type	Relay Normally Open
Output Voltage	5...125 VDC / 5...250 VAC
Output Current	2 A per output
Communication Interface	Ethernet + Serial Line + USB
Communication Protocol	Modbus TCP / Modbus RTU
Memory Expansion	SD Card Supported
Expansion Compatibility	Modicon TM3 Modules
Maximum Local Expansion	Up to 7 Modules
Mounting Type	DIN Rail Mounting
Protection Rating	IP20
Operating Temperature	-10...55°C
Storage Temperature	-25...70°C
Dimensions (W × H × D)	Approx. 70 × 90 × 70 mm
Weight	Approx. 263 g

Recommended Companion Models

Model	Product Name
TM3DQ16R	Schneider Modicon TM3 Relay Output Expansion Module
TM3AI4	Schneider Modicon TM3 Analog Input Expansion Module
TM3TI4	Schneider Modicon TM3 Temperature Input Module
TM3XREC1	Schneider Modicon TM3 Remote Receiver Module

Frequently Selected Alternatives

Model	Product Name
TM221M16R	Schneider Modicon M221 16 I/O Relay Logic Controller
TM221ME16T	Schneider Modicon M221 16 I/O Ethernet Transistor Logic Controller
TM221CE16R	Schneider Modicon M221 16 I/O Ethernet Relay Logic Controller
TM221CE24R	Schneider Modicon M221 24 I/O Ethernet Relay Logic Controller

Where It Excels in Industrial Use

• Compact Machine Automation Control
The Schneider TM221ME16R is a Modicon M221 compact logic controller designed for small and medium automation systems requiring reliable relay switching, Ethernet connectivity, and flexible I/O management. With 16 integrated I/O points, it is well suited for packaging machines, pump control systems, material handling equipment, and standalone industrial machines where efficient control and compact installation are essential.

• Relay-Based Industrial Equipment Control
The TM221ME16R integrates 8 relay outputs, providing flexible switching capability for motors, valves, contactors, and auxiliary devices. Its relay architecture allows engineers to manage different industrial loads while maintaining stable and dependable machine operation.

• Connected Automation Applications
With built-in Ethernet communication, serial communication support, USB programming, and Modbus capability, the TM221ME16R enables convenient integration with HMIs, drives, supervisory systems, and other automation devices.

• Expandable Control System Platforms
The TM221ME16R supports Modicon TM3 expansion modules, allowing additional digital, analog, and specialty I/O functions to be added as application requirements increase. This makes it suitable for scalable OEM machine designs and future system upgrades.

Key Strengths at a Glance

• Reliable Relay Output Performance
The TM221ME16R features 8 normally open relay outputs supporting AC and DC load switching, providing flexibility for various industrial control applications.

• Balanced I/O Configuration
With 8 digital inputs, 8 relay outputs, and 2 analog inputs, the controller provides a practical combination of discrete control and basic analog signal processing for compact automation projects.

• Ethernet-Enabled M221 Architecture
Integrated Ethernet communication, serial line connectivity, USB programming, and SD card support simplify commissioning, diagnostics, and long-term maintenance.

• Space-Saving Industrial Design
The book-style DIN rail design helps reduce control cabinet space while delivering the essential functions required for reliable machine automation.

Technical FAQs

1. What type of product is the Schneider TM221ME16R?
The Schneider TM221ME16R is a Modicon M221 programmable logic controller designed for compact industrial automation and machine control applications.

2. How many integrated I/O points does the TM221ME16R provide?
The TM221ME16R provides 16 integrated I/O points, including 8 digital inputs and 8 relay outputs.

3. What type of outputs does the TM221ME16R use?
The TM221ME16R uses normally open relay outputs suitable for switching industrial loads.

4. What power supply does the TM221ME16R require?
The TM221ME16R requires a 24 VDC power supply with an operating voltage range of 20.4...28.8 VDC.

5. Does the TM221ME16R support analog input signals?
Yes. The TM221ME16R includes 2 analog inputs supporting 0...10 V signals with 10-bit resolution.

6. Which expansion modules are compatible with the TM221ME16R?
The TM221ME16R supports Modicon TM3 expansion modules for additional digital, analog, and specialty control functions.

7. What programming software is used for the TM221ME16R?
The TM221ME16R is programmed using Schneider Electric EcoStruxure Machine Expert Basic software for Modicon M221 controllers.

8. Does the TM221ME16R support Ethernet communication?
Yes. The TM221ME16R includes an integrated Ethernet interface for industrial communication and automation network integration.

9. Can the TM221ME16R communicate through Modbus?
Yes. The TM221ME16R supports Modbus communication through its serial and Ethernet communication capabilities for industrial device integration.

10. Is the TM221ME16R suitable for OEM machine builders?
Yes. The TM221ME16R is designed for OEM applications requiring compact PLC control, relay outputs, communication flexibility, and scalable expansion options.

Look forward to your comments!Comment