What the program and data memory mean for your machine
The NX1021120 carries 5 MB of program capacity and 33.5 MB of data memory — enough headroom for a multi-axis motion sequence with vision inspection logic and recipe tables without squeezing code into overlays. The real-time clock and battery backup keep the data alive across power cycles, so the machine doesn't lose accumulated counts or shift register states on a brownout.
Fieldbus mix for a distributed architecture
Three communication interfaces on one CPU — Ethernet, EtherCAT, and EtherNet/IP — let this controller talk to servo drives on the high-speed motion bus while the HMI and upstream SCADA sit on the IT-friendly EtherNet/IP segment. The 100 Mbps baud rate on the EtherCAT port keeps the cycle time under 1 ms for a 16-axis coordinated move, which is the usual bottleneck on mixed-protocol machines.
Mounting and wiring that match the panel layout
DIN rail or panel mount — the same base unit fits either a standard 35 mm rail or a backplate with four screws, so the panel builder can lay out the cabinet without a dedicated sub-panel.