Method for integrating a further bus subscriber into a bus system, and bus system for integrating a further bus subscriber therein

A method for operating a bus system that includes a master module and bus subscribers arranged in series and downstream of the master module, comprising:

• initializing the bus system, including:
• sending, by the master module, a request to the bus subscribers to log into the master module;
• each active bus subscriber, in series order, logging into the master module after receiving the request, forwarding the request to an immediately-adjacent downstream bus subscriber, and waiting for a predetermined time period for the immediate-adjacent downstream bus subscriber to log into the master module;
• and
• stopping the initializing after the predetermined time period has elapsed without a bus subscriber logging into the master module and closing the bus system to a further bus subscriber;
• after closing the bus system, sending a data packet by the further bus subscriber to the master module;
• while the bus system is closed, stopping the data packet by a bus subscriber that is logged into the master module and is located upstream from the further bus subscriber;
• after the bus system is no longer closed, forwarding the stopped data packet to the master module, admitting the further bus subscriber to the bus system, and closing the bus system after the predetermined time period has elapsed without an additional bus subscriber logging into the master module.