Consisting of distributed IO coupler, I/O modules and terminal module. Among them, the I/O modules can be freely combined according to your needs. It supports up to 32 I/O modules. Fieldbus protocols: Modbus TCP Max. IO Module: 32 Data transmission medium: EtherNet CAT5 Connection method: 2*RJ45 Transmission rate: 10/100 Mbit/s Transmission distance: 100m Logic operation: built-in logic computing function Max. number of socket links: 15 Electrical isolation: Y