This Schneider Electric Zelio Logic SR3 Modbus Network Slave Communication Module uses a supply voltage of 24 volts direct current. It is compatible with Modbus serial link (RJ45). This Modbus Network Slave Communication Module adds Modbus communication functionality to a Zelio Logic relay. It allows the relay to be monitored and controlled remotely. Simple ladder programming, adapted for non-specialists. Discovery package, coming with Zelio Soft programming software, the simplest way to learn and use this relay. Built-in EEPROM flash memory for data backup up to 10 years, easy-to-recover after a power shortage or incident. More I/O than SR2 model, for larger applications. This product is certified by GOST, C-Tick, UL, GL and CSA. It meets EN/IEC 60068-2-27 Ea, EN/IEC 61000-4-3, EN/IEC 61000-4-4 level 3, EN/IEC 61000-4-2 level 3, EN/IEC 61000-4-5 and EN/IEC 60068-2-6 Fc standards. This product is compatible with all modules with 24V supply SR3 BxxxBD. Simple to select, install and program, Zelio Logic is suitable for all your applications. Flexible, it offers you the choice of 2 ranges, compact or modular, extendable and 2 programming languages (FBD or LADDER). Easy to use, Zelio Logic provides a real alternative to solutions based on cabled logic or specific cards.