MG400 connectivity and safety prerequisites

This chapter covers MG400 prerequisites for the DobotCtrl implementation, not a replacement for the manufacturer’s manuals.

Network

The DobotStudio Pro user manual identifies the default LAN1 address as 192.168.1.6 and LAN2 as 192.168.2.6. DobotCtrl also defaults to 192.168.1.6. Confirm the actual robot configuration and place the controller and host on an appropriate network.

This implementation uses Dashboard port 29999, Motion port 30003, and real-time feedback port 30004. These are implementation-level interfaces, distinct from the DobotStudio Pro GUI procedures.

Before operation

The MG400 Maintenance Manual V1.2 requires safety-system checks, risk assessment, a clear workspace, and appropriate tool and payload settings. Never connect safety devices to ordinary I/O. Do not treat software stop() or halt() as an emergency-stop circuit.

Collision detection is not a substitute for risk assessment or protective measures. Follow manufacturer procedures before executing motion examples.

Coordinates

The common Cartesian interface uses [x, y, z, rx, ry, rz]; the four-axis MG400 represents [x, y, z, r]. The implementation maps r to rz, without implying independent control of rx and ry. Joint vectors similarly map between six common slots and four physical joints.

References: DobotStudio Pro User Manual (MG400 & M1 Pro); DOBOT MG400 Maintenance Manual V1.2 (2026-04-23). Manufacturer hardware instructions and project software semantics are distinct.