Modbus RTU

The Modbus protocol is an open communication standard based on a master/slave architecture that enables simple and reliable communication as well as user-friendly commissioning and control between automation and field devices.

The Modbus RTU connection is characterised by reduced wiring as well as extremely low susceptibility to interference or increased EMC resistance. It also offers extensive diagnostic options that improve reliability and increase system availability.

The Dold Modbus modules are equipped with an interface via which process, status and configuration data can be transmitted easily and quickly. Thanks to the multipoint capability, up to 32 Modbus slaves can be integrated into the bus without additional repeaters. Optionally, additional functions such as "watchdog monitoring" can be easily configured.