AutoLog® GSM-4
Compact GSM-RTU · Built-in GSM/GPRS modem
Cost-effective GSM-RTU combining standard PLC features with a built-in GSM/GPRS/SMS modem. Four digital inputs, two relay outputs, one digital output, two serial ports — RS485 and Ethernet available as plug-in modules. Communicates via SMS, GPRS, Modbus RTU master/slave or Modbus TCP. Connects to AutoLog® Wireless I/O & Sensors and any AutoLog® HMI. Programmed in AutoLog GsmProgrammer with 512 programming lines, built-in PID controllers, FTP data logging and advanced SMS generation.
Inputs & outputs
- Digital inputs
- 4× 24 VDC, opto-isolated, PNP, max 8 mA
- Relay outputs
- 2× 5 A / 250 VAC, 1 A / 30 VDC
- Digital outputs
- 1× 24 VDC NPN, max 2 A (DIN-rail expandable)
- HMI support
- Keypad & LCD via I²C; touch screen via serial port 2 (Modbus)
Communication
- Serial port 1
- RS232 (GSM modem / programming), RJ45, 9600 bps
- Serial port 2
- RS232 / opt. RS485 / opt. Ethernet (plug-in)
- Protocols
- Modbus RTU master/slave, Modbus TCP, SMS, GPRS
- Speed
- 300–57600 bps
- GSM/GPRS
- Built-in modem, SMA antenna (internal or external)
Power
- Powering
- 12–30 VDC / 12–24 VAC; ext. 230/110 VAC available
- Power output
- 12/24 VDC for accessories, optional over-charge protector
Programming & memory
- Programming
- AutoLog GsmProgrammer (Windows), 512 lines, PID, FTP, RTC
- Battery backup
- RTC + calendar + program memory
- Storage
- Flash memory for application + data
- Indicators
- LEDs for Rx/Tx, GSM modem, DI/DO, RUN
- Switches
- 4 jumpers + 6 DIP switches
Environmental
- Operating range
- −30 to +70 °C
- Storage range
- −40 to +80 °C
- Humidity
- 95% non-condensing
- EMC immunity
- EN 50082-1 / EN 50082-2
- EMC emissions
- EN 50081-1 / EN 50081-2
Physical
- CPU card size
- 180 × 125 × 65 mm, 0.3 kg
- Enclosure
- Optional, up to IP68. ABS / Polycarbonate / Stainless steel. Wall, pole, ATEX options.
- Made in
- Finland