Controllers of a vacuum pumping and/or abatement system

A system for assigning an identifier to a controller of at least one of a modular vacuum pumping or a modular abatement system, the system comprising:

• a first controller;
• a second controller located at a module of the at least one of the modular vacuum pumping or the modular abatement system;
• and
• a user input device coupled to the module,
• wherein the system is configured to:
• determine, by the first controller, that a first identifier is to be assigned to the second controller;
• transmitting, by the first controller, a first signal indicative of the first identifier to the second controller;
• receiving, by the user input device, a user input;
• and
• adopting, by the second controller, the first identifier as an identifier of the second controller in response to the user input.

A modular vacuum pumping or modular abatement system comprising:

• a first controller;
• a second controller located at a module of the modular vacuum pumping or the modular abatement system;
• and
• a user input device coupled to the module,
• wherein the system is configured to:
• determine, by the first controller, that a first identifier is to be assigned to the second controller;
• transmitting, by the first controller, a first signal indicative of the first identifier to the second controller;
• receiving, by the user input device, a user input;
• and
• adopting, by the second controller, the first identifier as an identifier of the second controller in response to the user input.