Controller
NC2000
Display
No HMI
Supply
24 VAC, Class 2
Power
5 VA
Protocols
Modbus TCP/IP, RTU
Panel
NEMA 1, UL508A
Overview
The Prolon PL-PN1-1B is a pre-wired, UL508A certified NEMA 1 control panel built with one Prolon NC2000 network controller, without the touchscreen display. The NC2000 connects a Prolon network to the internet, manages the occupancy schedule and outside temperature for every controller, sends email alerts and records trend logs.
It links the Prolon system over Modbus TCP/IP (static IP address or DHCP), USB or Ethernet, and serves the field bus as a Modbus RTU (RS485) device with 1 input port and 1 output port. With no display, the panel draws 5 VA and is configured remotely with Prolon Focus software.
Specifications per Prolon Pre-Wired One Controller Panel datasheet PL-DATA-PANEL1CON-EN-V1; Prolon NC2000 Network Controller datasheet REV 7.3.0 / PL-DATA-NC2000-C/F-EN; Prolon One Controller Panel product page (proloncontrols.com) retrieved 2026-09-22. Reviewed September 2026.
Best For
- Remote access to a Prolon network over the internet
- Scheduling, trend logging and email alarms for Prolon controllers
- Sites managed remotely with Prolon Focus software
Warranty
For warranty coverage on this Prolon panel, contact ZOT Supply at sales@zotsupply.com or 855-825-2811.
Key Features
Network controller, no display
The NO HMI version of the panel, with the NC2000 drawing 5 VA from the 24 VAC supply.
Remote access over the internet
Modbus TCP/IP to serial conversion allows remote configuration of the Prolon network, with a static IP address or DHCP.
Schedules and calendars
Internal clock with up to 16 configurable weekly schedules and annual calendars, automated daylight savings adjustment, and 10 days of timekeeping without power.
Email alerts and trend logs
Polls devices and sends email alerts on user-configurable conditions, and records up to 100 trend logs at the same time to a standard SD card.
Shares outside temperature
Manages the occupancy schedule and outside temperature readings and distributes them to Prolon controllers on the network.
Fused, pre-wired NEMA 1 panel
Clearly marked terminal blocks, wire management channels and a disconnect-style Slo-Blo fuse (3A @ 250 VAC) with a replacement fuse included. The panel wiring diagram is in the door, and all inputs and outputs are tested in the factory.
ZOT Supply is an authorized distributor of Prolon products.
Technical Specifications
| Panel | |
|---|---|
| Controller | Prolon NC2000 network controller, no HMI display |
| Supply | 24 VAC ±10%, 50/60 Hz, Class 2 |
| Power | 5 VA |
| Overcurrent Protection | Disconnect-style Slo-Blo fuse (3A @ 250 VAC), with additional replacement fuse included |
| Enclosure | NEMA 1 |
| Panel Dimensions | 12.25 in. W x 16.25 in. H x 6.25 in. D |
| Weight | 23 lbs (10.5 kg) |
| Environment | -4 to 122 °F (-20 to 50 °C), non-condensing |
| Panel Certification | Complete panel is UL508A certified |
| Certification | UL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B |
| NC2000 Network Controller | |
| Communication | Modbus TCP/IP (Static IP address or DHCP) / USB / Ethernet; Modbus RTU (RS485) up to 127 nodes; this panel contains 1 node |
| RS485 Ports | Modbus RTU (RS485): 1 input port and 1 output port, up to 127 nodes |
| Connection | Removable screw-type terminal blocks (max 16 AWG) for power and RS485, modular RJ45 jacks for Ethernet/RS485, USB female type A for local PC connection |
| SD Card | Standard size only, SDSC or SDHC, FAT16 or FAT32 |
| Scheduling | Internal clock with up to 16 configurable weekly schedules and annual calendars |
| Clock Backup | Super-capacitor 0.5F, keeps precise time for 10 days |
| Microprocessor | ASIX AX11015, 8 bits, 25 MHz, 512 KB FLASH memory |
Documentation
Frequently Asked Questions
What is the Prolon PL-PN1-1B?
A pre-wired one controller panel built with a Prolon NC2000 network controller without the touchscreen display, in a UL508A certified NEMA 1 enclosure. It connects a Prolon system to the internet, manages schedules and outside temperature, sends email alerts and records trend logs.
Does the PL-PN1-1B have a touchscreen?
No. This is the NO HMI version. Configuration and monitoring are done remotely or from a PC with Prolon Focus software.
What power does the PL-PN1-1B require?
24 VAC ±10%, 50/60 Hz, Class 2. The NC2000 without HMI draws 5 VA.
How does it connect to a network?
Modbus TCP/IP with a static IP address or DHCP, USB and Ethernet, plus Modbus RTU (RS485) with 1 input port and 1 output port for up to 127 nodes.
What temperature range is the panel rated for?
-4 to 122 °F (-20 to 50 °C), non-condensing.
How long does it keep time without power?
A 0.5F super-capacitor keeps precise time for 10 days without electricity and recharges in a matter of seconds.
- Panel Type:
- Network Controller Panel
- Display:
- No Display
- Controller Type:
- Network Controller
- Communication:
- Modbus TCP/IP, Modbus RTU (RS485), USB
