Customers want the PLC to be as small as possible. Possible reasons:
1. Space limitation: Industrial use sites may face limited installation space. Small-sized PLCs are easier to install in limited spaces and are more convenient to use.
2. Cost savings: Small size PLC usually means lower manufacturing costs and material costs. Customers may wish to reduce the capital investment required to purchase and maintain a PLC.
3. Flexibility: Small PLCs may be easier to integrate into existing systems to meet specific needs. Customers may want to use smaller PLCs to implement flexible control and automation solutions.