| Brand and Model | Schneider Electric, TM221C16R |
| Series | Modicon M221 Logic Controller |
| I/O Configuration | 9 digital inputs (24V DC) + 7 relay outputs (normally open) |
| Power Supply | 100–240V AC (85–264V wide voltage range), 50/60Hz |
| Output Specifications | Relay contacts, 2A/channel, voltage 5–125V DC / 5–250V AC |
| Memory | Program/Data RAM 256KB, Flash 256KB, supports SD card up to 2GB |
| Programming | CoDeSys environment, program capacity approximately 10,000 steps |
| Communication Ports | Mini USB (programming), 2*RJ45 (Serial 1: RS485; Serial 2: RS232/RS485) |
| Weight | Net weight 0.346kg |
| Dimensions | 95 (W) × 70 (D) × 90 (H) mm |
| Protection | IP20, DIN rail/panel mounting (TH35-7.5/15) |
| Operating Temperature | -10℃ to +55℃ |
| Certifications | CE, CSA, CULus, LR, IACS E10, RCM, EAC, DNV-GL |