A network-addressable pulse-rate totalizer and I/O module that connects pulse-output sensors and discrete signals directly to any Ethernet network. Counts and measures pulse rate on an optically isolated input, provides digital and analog I/O, and is accessed over Ethernet using either a simple ASCII/TCP protocol or Modbus TCP — selected by an onboard jumper.
A 56-bit non-volatile totalizer means the Millennium ETH never loses count through a power cycle and effectively never overflows. Rate calibration is field-adjustable and stored non-volatile. Firmware is field-updatable over Ethernet via a resident bootloader.
Available for OEM integration and private label. Volume pricing, DIN-rail or board-level supply available.
| Signal | 5 to 24 VDC, optically isolated |
| Frequency Range | 0.5 Hz to 30 kHz |
| Min. Pulse Width | > 33.33 µs high / low |
| Totalizer | 56-bit non-volatile; retained through power loss |
| Max Count | 72,057,594,037,927,935 |
| Count Longevity | ~76,000 yrs @ 30 kHz • ~457,000 yrs @ 5 kHz |
| Rate Measurement | 8 MHz timebase (0.125 µs resolution) |
| Rate Calibration | Field-calibratable; stored non-volatile |
| Digital Inputs | 3 ch, 5–24 VDC, optically isolated |
| Digital Outputs | 3 ch, optically isolated, open-collector |
| Analog Inputs | 4 ch, 0–5 VDC, 12-bit (0–4,095) |
| Isolation | Optical on pulse, digital in & digital out. Separate user commons for inputs and outputs. |
| Interface | Ethernet 10/100, RJ45 |
| Protocols | ASCII/TCP (port 5000) or Modbus TCP (port 502) — jumper selected |
| Modbus Support | Read/Write Coils, Read Input Registers, Write Multiple Registers |
| Default IP | 192.168.1.222 (field configurable) |
| Firmware Update | Field-updatable over Ethernet via bootloader |
| Input Power | 12 or 24 VDC (user selectable) | Current Draw | < 130 mA at 24 VDC |
| Board Size | 72 mm × 80 mm | Form Factor | OEM board-level PCB (no enclosure) |
| Mounting Holes | 4 × 5 mm ID • 70.5 mm × 60 mm spacing | Panel Mounting | Optional DIN-rail mounting |
| Connections | Screw (cage) terminal blocks | ||
| TB1 – Power | |
|---|---|
| Pin | Signal |
| 1 | DC Input |
| 2 | DC Input |
| 3 | (not used) |
| 4 | +12 VDC |
| 5 | (not used) |
| 6 | DC Common |
| 7 | DC Common |
| TB2 – Pulse & Digital In | |
|---|---|
| Pin | Signal |
| 1 | Pulse In |
| 2 | Pulse In Common |
| 3 | Input 1 |
| 4 | Input 2 |
| 5 | Input 3 |
| 6 | USR_COM1 |
| 7 | USR_COM1 |
| TB3 – Digital Out | |
|---|---|
| Pin | Signal |
| 1 | Output 1 (O.C.) |
| 2 | Output 2 (O.C.) |
| 3 | Output 3 (O.C.) |
| 4 | USR_COM2 |
| 5 | (not used) |
| 6 | DC Common |
| 7 | DC Common |
| TB4 – Analog In | |
|---|---|
| Pin | Signal |
| 1 | Analog In 1 |
| 2 | DC Common |
| 3 | Analog In 2 |
| 4 | DC Common |
| 5 | Analog In 3 |
| 6 | DC Common |
| 7 | Analog In 4 |
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