Features: It can communicate with units and software that support Modbus/TCP client function. Support Unit: General Modbus: 01 (Read Coil) 03 (Read Multiple Registers) 05 (Write Coil) 06 (Write Single Register) 15 (Write Multiple Coils) 16 (Write Multiple Registers) GRAPHTECH: MT1000 series Support Device: DO (0) AO (4)