Description
Saia PCD3M.5340
Technical Specifications
- Product type: Modular PLC CPU
- Processor: 32-bit RISC
- Memory: SRAM and Flash
- Bus: PCD3 bus
- Communication: RS232, RS485, Ethernet optional
- Supply: DC24 V
- Operating temperature: -20 °C to +55 °C
- Storage temperature: -40 °C to +80 °C
- Humidity: 5 % to 95 %, non-condensing
- Protection: IP20
- Installation: DIN rail
- Programming: PG5 language
Functional Features
- Modular PLC CPU
- 32-bit high-speed scan
- Multi-I/O module expansion
- Communication module options
- Front panel LEDs for power, run, fault
- RTC real-time clock
- Program Flash storage
- Backup battery SRAM
- Watchdog
- Industrial wide-temperature design
Application Scenarios
- Building HVAC control
- Water treatment PLC
- Food packaging machine
- Machine tool logic control
- Energy management system
Materials and Construction
- Housing: Flame-retardant engineering plastic
- PCB: FR4 board
- Processor: 32-bit RISC chip
- Communication: Serial transceivers
- Connector: PCD3 bus connector
- Terminals: Screw terminals
Structural Features
- DIN rail modular housing
- Left-side I/O module expansion
- Front panel LEDs and programming port
- Internal processor, memory, communication
- Fanless cooling
- Modular stacking
Working Principle DC24 V supply powers the CPU. After power-on self-diagnosis, the CPU loads the user program from Flash to execute. It reads and writes I/O modules over the PCD3 bus. The RS232 programming port connects to PG5 software for program transfer. RTC provides time stamps. Watchdog monitors program execution.
Installation Requirements
- DIN rail mount
- Stack I/O modules in sequence
- DC24 V supply
- Programming cable
- Grounding
- Temperature -20 °C to +55 °C
- Download user program after power-up
- Configure communication parameters
Precautions
- Power off before expansion module insertion
- Replace battery periodically
- Back up program periodically
- Store spares in dry environment
- Reliable grounding
- Communication parameters match peripherals
