Control system for controlling an industrial robot
View Patent ↗A control system for controlling an industrial robot including a manipulator. The control system includes a plurality of modules adapted to handle various functions. A first of the modules is a drive module adapted to control the motors driving the movements of the manipulator. A second of the modules is a main computer module adapted to execute a program with instructions for the movements of the manipulator and to plan the movements of the manipulator based on the executed instructions. The control system is adapted to communicate with one or more external devices via an external network. The control system includes an internal network. Each of the modules is arranged as a node in the internal network and includes communication elements for communicating with the other nodes in the internal network. The internal network includes a first part adapted for normal communication and a second part adapted for time critical communication. The main computer module is arranged as a node in both the first and second parts of the internal network and the drive unit is arranged as a node in the second part of the internal network.
1. A control system for controlling an industrial robot including a manipulator, the control system comprising:
a main computer module adapted to execute movement instructions from a robot program and generate reference signals to the drive module based on said movement instructions
a drive module adapted to generate analog control signals to motors driving movements of the manipulator in response to said reference signals generated by the main computer module
a human machine interface module adapted to teach and program the robot,
a local area network having a first part adapted for normal communication and a second part, distinct from the first, said second part adapted for time critical communication and configured to provide predictable timing for data transfer, and
wherein each of said modules is arranged as a node in the local area network and comprises a communication module configured to communicate with the other nodes in the local area network, and said main computer module is arranged as a node in both the first and second parts of the local area network, said human machine interface module is arranged as a node in the first part of the local area network, and said drive module is arranged as a node in the second part of the local area network, and
wherein the control system is adapted to communicate with one or more external devices via an external network, said external network being distinct from said local area network.
2. The control system according to claim 1 , wherein the first part of the local area network is connected to the second part of the local area network via a router.
3. The control system according to claim 1 , wherein the local area network is connected to the external network via a router.
4. The control system according to claim 1 , wherein in at least one of the modules is also arranged as a node in the external network.
5. The control system according to claim 1 , further comprising:
a safety module adapted to carry out safety functions of the robot, wherein the safety module is arranged as a node in both the first and second parts of the local area network.
6. The control system according to claim 1 , further comprising:
an input/output interface module adapted to connect external equipment to the local area network, wherein the input/output interface module is arranged as a node in the first part of the local area network.