Technical Specifications (Parameters) Parameter Specification Product Type Logic controller Product Range Modicon M221 Discrete I/O Number 16 Discrete Input Number 8, conforming to IEC 61131-2 Type 1 Discrete Output Number 8 relay Discrete Output Type Relay, normally open Analogue Input Number 2 at 0...10 V Analogue Input Resolution 10 bits [Us] Rated Supply Voltage 24 V DC Supply Voltage Limits 20.4...28.8 V Discrete Output Voltage 5...125 V DC / 5...250 V AC Discrete Output Current 2 A Memory Capacity 256 kB for user application and data RAM (with 10000 instructions), 256 kB for internal variables RAM Data Backed Up 256 kB built-in flash memory for backup of application and data Data Storage Equipment 2 GB SD card (optional) Real-Time Clock Yes Execution Time Per Instruction 0.2 µs (Boolean) Integrated Connection Type USB port (mini B USB 2.0), non-isolated serial link (RJ45, RS232/RS485), Ethernet (RJ45) Communication Port Protocol USB: SoMachine-Network; Serial: Modbus master/slave RTU/ASCII or SoMachine-Network; Ethernet Communication Service Ethernet/IP adapter, Modbus TCP client/server, DHCP client Port Ethernet 10BASE-T/100BASE-TX, 1 port Maximum I/O Expansion Modules 7 (local architecture), 14 (remote architecture) Electrical Connection Removable spring terminal blocks Mounting Support Top hat TH35-15/TH35-7.5 rail (IEC 60715), plate/panel with fixing kit IP Degree of Protection IP20 (with protective cover) Operating Temperature -10...55 °C (horizontal installation), -10...35 °C (vertical installation) Dimensions (W x H x D) 70 mm x 90 mm x 70 mm Net Weight 0.264 kg Standards IEC 61131-2, UL 508, CSA C22.2 No. 213, IACS E10, ANSI/ISA 12-12-01 Product Certifications cULus, CE, RCM, EAC, UKCA, ABS, DNV-GL, LR, cULus HazLoc