Compare the way memory space is assigned and referenced in rack$-$based and tagbased PLCs$.$

With rack$-$based addressing a fixed device with a fixed address is used, whereas tag$-$based addressing is more flexible and uses text$-$based addressing.

With rack$-$based addressing a new program is entered or an existing one is updated in the internal RAM memory, whereas tag$-$based addressing executes the user program with input devices.

With tag$-$based addressing a fixed device with a fixed address is used, whereas rack$-$based addressing is more flexible and uses text$-$based addressing

With tag$-$based addressing a new program is entered or an existing one is updated in the internal RAM memory, whereas rack$-$based addressing executes the user program with input devices.