EdgePLC N-Boards: 32-Channel Distributed IO for High-Density Automation
EdgePLC BL234 series solves the IO expansion headache with one host, one backplane bus, and up to 32 N-series distributed IO boards. DI, DO, AI, AO, RTD, and TC are all covered—up to 32 channels per board. Expand from 8 points to hundreds without redesigning the system.
What Are N-Boards?
N-boards are pluggable distributed IO modules that connect to the main controller via backplane bus. They convert field signals to digital data or output control signals to actuators.
Key features:
Selection Overview
|
Family |
Models |
Function |
|
Digital Input |
DIN116x (16-ch) / N132x (32-ch) |
NPN/PNP/dry contact |
|
Digital Output |
DON216x (16-ch) / N232x (32-ch) |
NPN/PNP, 100 mA/ch |
|
Relay Output |
N208 |
48-channel relay |
|
Analog Input |
AIN3081/N3083/N3046 |
4–20 mA / 0–5V / ±10V |
|
Analog Output |
AON4081/N4086 |
0–20 mA / ±10V |
|
RTD |
RTDN5041–N5044 |
3/4-wire PT100, PT1000 |
|
Thermocouple |
TCN5088 |
8-channel TC input |
|
Special |
N7021/N9081–N9083 |
Power module / pulse counting |
System Architecture
EdgePLC main controller + backplane bus + N-boards + field devices. N-boards collect and output locally; data aggregates to the controller, then uploads via 4G/WiFi/Ethernet.
Why It Suits High-Density IO
Conclusion
For automation sites with growing IO needs, EdgePLC N-boards offer a scalable, pluggable, full-signal-type solution. One host, up to 32 boards, hundreds of points—without the cabinet clutter or system redesign.
