Transmission of data packet with delay information to an industrial controller

A method for transmitting a data packet to an industrial controller, the industrial controller being configured for executing an industrial application control one or more industrial devices in an industrial environment, the method being performed by a secondary network node among a plurality of secondary network nodes between a primary network node and the industrial controller, in a wireless communication network, the method comprising:

• receiving, from the primary network node, a data packet comprising a delay time relating to a delay occurred during the transmission of the data packet to the primary network node;
• determining a new delay time associated with the received data packet, the new delay time being indicative of delay occurred during the transmission of the data packet to the secondary network node;
• forming a data packet intended for the industrial controller;
• and
• transmitting the data packet to the industrial controller in the wireless communication network,
• wherein the forming of the data packet intended for the industrial controller comprises forming the data packet from the received data packet and the determined new delay time.

An apparatus of a primary network node configured to operate in a wireless communication network for transmitting a data packet intended for an industrial controller, the industrial controller being configured for executing an industrial application to control one or more industrial devices in an industrial environment, the apparatus comprising controlling circuitry configured to cause:

• reception of a data packet from at least one industrial device;
• determination of a delay time associated with the received data packet, the delay time being indicative of a delay of the received data packet occurred during transmission of the received data packet to the primary network node;
• formation of a data packet intended for the industrial controller;
• and
• transmission of the data packet intended for an industrial controller, to one or more secondary network nodes in the wireless communication network,
• wherein the forming of the data packet intended for the industrial controller comprises forming the data packet from the received data packet and the determined delay time.

An apparatus of a secondary network node among a plurality of secondary network nodes between a primary network node and the industrial controller configured to operate in a wireless communication network for transmitting a data packet to an industrial controller, the industrial controller being configured for executing an industrial application to control one or more industrial devices in an industrial environment, the apparatus comprising controlling circuitry configured to cause:

• reception, from the primary network node, a data packet comprising a delay time relating to a delay occurred during transmission of the data packets to the primary network node;
• determination of a new delay time associated with the received data packet, the new delay time being indicative of delay occurred during the transmission of the data packet to the secondary network node;
• formation of a data packet intended for the industrial controller;
• and
• transmission of the data packet to the industrial controller in the wireless communication network,
• wherein the forming of the data packet intended for the industrial controller comprises forming the data packet from the received data packet and the determined new delay time.