This is the list of our products depending on the combination of the shields. As it is
already said above the A Zone is totally common for all the M-Duino Family.
The nomenclature of the M-Duino Family products consists on placing the name of the
Shield/s after the total number of I/Os of the product.
For example M-Duino53ARR+ is a PLC with the 3 extra Zones (B, C, D), which are
Analog, Relay, Relay respectively. It has 53 I/Os.
* There are 2 different exceptions. M-Duino38R+/M-Duino57R+ should be called with this nomenclature M-
Duino38RR+/M-Duino57RRR+, as everything is Relay it is omitted. Also for the M-duino21+/42+/58+ as
they are all Analog they are not represented with this nomenclature. With the nomenclature represented in
the User Guide they would be: M-Duino21A+/M-Duino42AA+/M-Duino58AAA+