Support for service activities at a programmable logic controller (PLC)
AssigneeSiemens Aktiengesellschaft
InventorsGunter Langer, Gunter Griessbach
Life of this patent
Estimating the term…
Abstract
A PLC includes a first and second module. The first module having terminal positions and/or connectors behind a door located on its front side as well as having a display, and with the second module having a display unit. For servicing the first module, status messages for terminal position and/or connector of the first module are transmitted via a communication link to the second module and are displayed by a display of the second module.
Claims17
A first module of a Programmable Logic Controller (PLC) communicatively coupled to a second module of the PLC via a communication link, the first module comprising:
- a door located on the front side of the first module;
- terminals and/or connectors arranged behind the door;
- a status message is transmitted to the second module of the PLC via the communication link, the status message pertaining to at least one of the terminals and/or one of the connectors;
- and
- a display indicator arranged behind the door that indicates the transmitted information is displayed by the second module.
A Programmable Logic Controller, comprising:
- a first module, comprising:
- a door located on the front side of the first module, and
- terminals and/or connectors arranged behind the door;
- and
- a second module, comprising:
- a door located on the front side of the second module, and
- a display unit, and
- wherein the PLC is placed into a operating state in which a message is transmitted from the first module to the second module via a communication link, and
- wherein the message is displayed via the display unit of the second module.
A method for supporting service activities at a Programmable Logic Controller (PLC) having a first and second module, comprising:
- opening a door arranged on a front side of the first module;
- activating an operating state of the PLC in response to the door being open;
- transmitting a first status message from the first module to the second module after the activation, the first status message pertaining to a status a terminal position and/or a connector of the first module;
- receiving the first status message by the second module;
- displaying the received first status message at a display unit on the second module;
- and
- indicating that the second module will display the received messages via a visual display at the first module.
Dependencies are inferred from the claim text.