In industrial automation, the choice between traditional hardwired signals and digital communication (like PROFINET or Modbus) sparks constant debate. Hardwiring uses physical cables and relays to transmit I/O signals. It is intuitive for many electricians who rely on multimeters for troubleshooting

In today's rapidly evolving field of industrial automation, I/O expansion modules play a crucial role by providing powerful input and output capabilities to industrial control systems, thus driving process intelligence and automation. This article explores the key roles and advantages of I/O expansi