AutoLog® AL-14LP PLC
Low-Power OEM-PLC · battery + solar · 4 power-save modes
Designed for remote, off-grid sites: pumping stations beyond the mains, environmental monitoring buoys, solar-powered telemetry on pipelines. Eight digital inputs, eight digital outputs (NPN) plus one PNP output dedicated to powering external sensors only when the program needs them, zero-to-four 12-bit analog inputs with the standard AutoLog plug-in module catalogue, two serial ports. Same 512 kB FLASH / 8 000-line / 32-PID program capacity as the rest of the family. The standout feature is the four-mode power state machine — at 140 µA clock-interruption draw, a single 12 V accumulator can run the AL-14LP for years between charges.
Inputs & outputs
- Digital inputs
- 8× 12/24 VDC, max 8 mA, PNP, opto-isolated
- Digital outputs
- 8× NPN + 1× PNP (external sensor power), 12/24 VDC max 1 A (group max 4 A), opto-isolated
- Analog inputs
- 0–4× 12-bit plug-in modules: Pt100 (−50..150 / 0..500 / −250..750 °C), KTY10, NTC, 0..2/5/10 V, ±10 V, 0..5/20 mA, 4..20 mA, RMS 40/25/0.25 VAC. Power to AI bank can be closed when not used
- I²C port
- 1× HMI, iButton. Power to I²C port can be closed when not used
- HMI interface
- Character displays to Windows-CE touch screens via I²C or serial port
Communication
- Serial port 1 (SER1)
- RS232 (RJ45). Power to serial ports can be closed when not used
- Serial port 2 (SER2)
- RS232 (RJ45)
- Modbus RTU
- Master/Slave on both serial ports simultaneously, 300–115 200 bps
- Remote programming
- Over any Modbus-supporting medium (radio, GSM data, RS-485)
Power
- Powering
- 12/24 VDC or 10/18 VAC, max 5 VA
- UPS connector
- Yes (via AL-UPS card)
- Power-save: Run
- 5.6 – 20 mA, depends on powered hardware (AI, I²C, serial ports, LEDs, external power)
- Power-save: Idle
- 2.2 mA — wake on clock, digital input or serial port interruption
- Power-save: Stop
- 1.2 mA — wake on clock or digital input interruption
- Power-save: Clock-interruption
- 140 µA — wake on clock only
Programming & memory
- Programming tool
- AutoLog® ALProWin — instruction list & ladder, symbolic names, trends, monitoring tables
- Application memory
- 512 kB FLASH, 8 000 programming lines
- Instructions
- 260+ functions
- PID controllers
- 32 built-in
- Data memory
- 512 kB RAM
- Data logging
- E.g. 10 time-stamped measurements × 3 000 records
- Clock / calendar
- Built-in (remotely settable)
- Battery backup
- Yes
Physical & environmental
- Operating range
- −30 to +70 °C
- Storage range
- −40 to +80 °C
- EMC immunity
- EN 50082-1 / EN 50082-2
- EMC emissions
- EN 50081-1 / EN 50081-2
- Enclosure
- Default DIN-rail metal cover (IP20); optional IP65 plastic box or metal box
- Size
- 225 × 125 × 65 mm, ≈ 0.3 kg
- Made in
- Finland
Order code
- AL14LP
- 900670 (AutoLog® 14LP PLC)