| Range of product | Modicon M221 |
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| Product or component type | Logic controller |
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| [Us] rated supply voltage | 24 V DC |
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| Discrete input number | 14, discrete input 4 fast input conforming to IEC 61131-2 Type 1 |
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| Analogue input number | 2 at 0...10 V |
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| Discrete output type | Transistor |
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| Discrete output number | 10 transistor 2 fast output |
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| Discrete output voltage | 24 V DC |
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| Discrete output current | 0.5 A |
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| Discrete I/O number | 24 |
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| Maximum number of I/O expansion module | 7 (local I/O-Architecture) · 14 (remote I/O-Architecture) |
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| Supply voltage limits | 20.4…28.8 V |
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| Inrush current | 35 A |
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| Maximum power consumption in W | 14 W at 24 V (with max number of I/O expansion module) · 4.8 W at 24 V (without I/O expansion module) |
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| Power supply output current | 0.52 A 5 V for expansion bus · 0.2 A 24 V for expansion bus |
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| Discrete input logic | Sink or source (positive/negative) |
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| Discrete input voltage | 24 V |
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| Discrete input voltage type | DC |
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| Analogue input resolution | 10 bits |
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| LSB value | 10 mV |
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| Conversion time | 1 ms per channel + 1 controller cycle time for analogue input analog input |
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| Permitted overload on inputs | +/- 30 V DC for 5 min (maximum) for analog input · +/- 13 V DC (permanent) for analog input |
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| Voltage state 1 guaranteed | >= 15 V for input |
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| Voltage state 0 guaranteed | <= 5 V for input |
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| Discrete input current | 7 mA for discrete input · 5 mA for fast input |
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| Input impedance | 3.4 kOhm for discrete input · 100 kOhm for analog input · 4.9 kOhm for fast input |
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| Response time | 35 µs turn-off, I2...I5 terminal(s) for input · 5 µs turn-on, I0, I1, I6, I7 terminal(s) for fast input · 35 µs turn-on, other terminals terminal(s) for input · 5 µs turn-off, I0, I1, I6, I7 terminal(s) for fast input · 100 µs turn-off, other terminals terminal(s) for input · 5 µs turn-on, turn-off, Q0...Q1 terminal(s) for output · 50 µs turn-on, turn-off, Q2...Q3 terminal(s) for output · 300 µs turn-on, turn-off, other terminals terminal(s) for output |
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| Configurable filtering time | 0 ms for input · 3 ms for input · 12 ms for input |
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| Discrete output logic | Negative logic (sink) |
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| Maximum current per output common | 5 A |
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| Output frequency | 100 kHz for fast output (PWM/PLS mode) at Q0...Q1 · 5 kHz for output at Q2...Q3 · 0.1 kHz for output at Q4...Q9 |
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| Absolute accuracy error | +/- 1 % of full scale for analog input |
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| Maximum leakage current | 0.1 mA for transistor output |
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| Maximum voltage drop | <1 V |
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| Mechanical durability | 20000000 cycles for transistor output |
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| Maximum tungsten load | <12 W for output and fast output |
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| Protection type | Without protection |
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| Memory capacity | 256 kB for user application and data RAM with 10000 instructions · 256 kB for internal variables RAM |
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| Data backed up | 256 kB built-in flash memory for backup of application and data |
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| Data storage equipment | 2 GB SD card (optional) |
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| Battery type | BR2032 or CR2032X lithium non-rechargeable |
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| Backup time | 1 year at 25 °C (by interruption of power supply) |
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| Execution time for 1 KInstruction | 0.3 ms for event and periodic task |
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| Execution time per instruction | 0.2 µs Boolean |
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| Exct time for event task | 60 µs response time |
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