Modicon M221
- Type
- Nano PLC
- Applications
- Simple machines
- Scale / I/O
- 16/24/32/40 I/O; TM3 expansion
- Communication & motion
- Ethernet by model; serial; PTO
- Engineering software
- Machine Expert Basic
Schneider Electric · Modicon
Modicon M221 PLC / PAC Control Platform
Compact Nano PLCs for simple machines with 16 to 40 embedded I/O and TM3 expansion.
This page supports platform, model, I/O and engineering-architecture identification. Confirm the full designation against supply, signal types, networks, expansion modules, software and firmware versions.
- Nano PLC
- Platform type
- 16/24/32/40 I/O; TM3 expansion
- Scale and I/O
- 28
- Controller models
- 0
- Expansion items
PRODUCT OVERVIEW
Modicon M221
Compact Nano PLCs for simple machines with 16 to 40 embedded I/O and TM3 expansion.
The page retains controller, expansion-I/O, software and model-code information so the review can continue against the actual control architecture.
- ApplicationsSimple machines
- Scale and I/O16/24/32/40 I/O; TM3 expansion
- Communications and motionEthernet by model; serial; PTO
- Engineering softwareMachine Expert Basic
PLATFORM STRUCTURE AND CORE CAPABILITIES
- 01
Controller-platform role
Nano PLC
- 02
Embedded and expansion I/O
16/24/32/40 I/O; TM3 expansion
- 03
Networks, fieldbus and motion
Ethernet by model; serial; PTO
- 04
Engineering software and project version
Machine Expert Basic
TECHNICAL DATA AND PLATFORM BRANCHES
CONTROLLER REFERENCES
28 models
Confirm supply, I/O, electrical outputs, networks, expansion, software and firmware before finalizing the order number.
| Model | Controller type | Supply | Embedded I/O | Output type | Ethernet | Fieldbus / motion | Program / performance | Expansion scale | Software |
|---|---|---|---|---|---|---|---|---|---|
| TM221C16R | Standard logic controller | 100-240 Vac | 9DI + 7DO + 2AI | Relay | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE16R | Standard logic controller | 100-240 Vac | 9DI + 7DO + 2AI | Relay | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C16T | Standard logic controller | 24 Vdc | 9DI + 7DO + 2AI | PNP sourcing transistor | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE16T | Standard logic controller | 24 Vdc | 9DI + 7DO + 2AI | PNP sourcing transistor | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C16U | Standard logic controller | 24 Vdc | 9DI + 7DO + 2AI | NPN sinking transistor | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE16U | Standard logic controller | 24 Vdc | 9DI + 7DO + 2AI | NPN sinking transistor | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C24R | Standard logic controller | 100-240 Vac | 14DI + 10DO + 2AI | Relay | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE24R | Standard logic controller | 100-240 Vac | 14DI + 10DO + 2AI | Relay | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C24T | Standard logic controller | 24 Vdc | 14DI + 10DO + 2AI | PNP sourcing transistor | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE24T | Standard logic controller | 24 Vdc | 14DI + 10DO + 2AI | PNP sourcing transistor | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C24U | Standard logic controller | 24 Vdc | 14DI + 10DO + 2AI | NPN sinking transistor | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE24U | Standard logic controller | 24 Vdc | 14DI + 10DO + 2AI | NPN sinking transistor | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C40R | Standard logic controller | 100-240 Vac | 24DI + 16DO + 2AI | Relay | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE40R | Standard logic controller | 100-240 Vac | 24DI + 16DO + 2AI | Relay | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C40T | Standard logic controller | 24 Vdc | 24DI + 16DO + 2AI | PNP sourcing transistor | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE40T | Standard logic controller | 24 Vdc | 24DI + 16DO + 2AI | PNP sourcing transistor | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221C40U | Standard logic controller | 24 Vdc | 24DI + 16DO + 2AI | NPN sinking transistor | None | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221CE40U | Standard logic controller | 24 Vdc | 24DI + 16DO + 2AI | NPN sinking transistor | 1 port | 1 serial port; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221M16R | Book-style logic controller | 24 Vdc | 9DI + 7DO + 2AI | Relay | None | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221M16RG | Book-style/spring-terminal logic controller | 24 Vdc | 9DI + 7DO + 2AI | Relay | None | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221M16T | Book-style logic controller | 24 Vdc | 9DI + 7DO + 2AI | PNP sourcing transistor | None | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221M16TG | Book-style/spring-terminal logic controller | 24 Vdc | 9DI + 7DO + 2AI | PNP sourcing transistor | None | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221M32TK | Book-style/HE10 logic controller | 24 Vdc | 16DI + 16DO + 2AI | PNP transistor/HE10 connection | None | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221ME16R | Book-style logic controller | 24 Vdc | 9DI + 7DO + 2AI | Relay | 1 port | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221ME16RG | Book-style/spring-terminal logic controller | 24 Vdc | 9DI + 7DO + 2AI | Relay | 1 port | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221ME16T | Book-style logic controller | 24 Vdc | 9DI + 7DO + 2AI | PNP sourcing transistor | 1 port | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221ME16TG | Book-style/spring-terminal logic controller | 24 Vdc | 9DI + 7DO + 2AI | PNP sourcing transistor | 1 port | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
| TM221ME32TK | Book-style/HE10 logic controller | 24 Vdc | 16DI + 16DO + 2AI | PNP transistor/HE10 connection | 1 port | 2 serial ports; Modbus; high-speed counter/PTO | Compact control; 2 channels of 0-10V analog input | Up to 7 local TM3; expandable to 14 modules with TM3XTRA1/TM3XREC1 | EcoStruxure Machine Expert Basic |
ENGINEERING SOFTWARE
Software compatibility and migration
| Software | Controller ranges | Project type | Integration | Version notes | Migration notes |
|---|---|---|---|---|---|
| EcoStruxure Machine Expert Basic | M100 / M200 / M221 | Small machine PLC projects | Modbus, Ethernet by CPU | Version must be confirmed for old and new SoMachine Basic projects | Legacy Twido projects usually require re-migration and verification |
MODEL-CODE GUIDE
Series code identification
| Code | Meaning | Example | Verify |
|---|---|---|---|
| C / M | C=standard type; M=book type | TM221C24R / TM221M16T | Structure, terminals, and number of serial ports differ |
| E | Built-in Ethernet | TM221CE24R / TM221ME16T | Versions without E typically have no Ethernet |
| 16/24/32/40 | On-board I/O point count | TM221CE40T | I/O point count does not equal all high-speed points |
| R / T / U | R=relay; T=PNP sourcing; U=NPN sinking | TM241CE24U | Output electrical type must match load and regional standards |
| G / K | G=spring terminal; K=HE10 connection | TM221ME16RG / TM221ME32TK | Terminals and harnesses differ and cannot be ignored |
INQUIRY CHECKLIST
- Complete designation and nameplate
- Supply and grounding
- Embedded and expansion I/O list
- Digital and analog signals
- Ethernet and fieldbus networks
- Motion-control or safety requirements
- Engineering software and project version
- Firmware, quantity and application
PLATFORM SUMMARY
- Product platform
- Modicon M221
- Type
- Nano PLC
- Scale / I/O
- 16/24/32/40 I/O; TM3 expansion
- Communications / motion
- Ethernet by model; serial; PTO
- Engineering software
- Machine Expert Basic
APPLICATIONS
Machine automation
Review program size, scan cycle, networks, motion control and machine-safety requirements.
Process control
Define the architecture around availability, redundancy, remote I/O, communications and engineering software.
Equipment and lines
Structure the control system around I/O scale, network topology and maintenance.
System modernization
Begin migration review with the original program, module list, firmware, networks and wiring.
RECOMMENDED PLATFORM RANGES
Modicon M221
Nano PLC
- Scale / I/O
- 16/24/32/40 I/O; TM3 expansion
- Software
- Machine Expert Basic
This is a platform overview, not a complete system selection. Verify the final configuration against the full catalog number, program, I/O, electrical, network, software, firmware and mechanical conditions.
