Description
Hardware Specifications
- Processor: Intel 80386EX, 25 MHz, floating‑point math support
- User Memory: 240 KB configurable RAM / Flash (Firmware V9.0+)
- I/O Capacity: Max 2048 discrete inputs / 2048 discrete outputs; up to 32640 analog words
- Scan Speed: ~0.22 ms per 1K boolean logic
- Communication: 1×10Base‑T Ethernet; 3 built‑in serial ports (RS232/RS485), SNP/SNPX protocol
- Power Consumption: 5 VDC, 670‑890 mA, single‑slot backplane installation
- Operating Temperature: 0 °C ~ 60 °C
- Expansion: 1 main baseplate + up to 7 expansion / remote I/O baseplates (total 8 racks)
- Programming Software: Proficy Machine Edition, VersaPro
Core Functions
- Runs ladder logic, function‑block programs with watchdog safety supervision.
- Supports PID loop control, high‑speed counter, timer‑counter and interrupt subroutine functions.
- Ethernet for network programming, HMI connection and peer‑to‑peer PLC communication.
- Serial ports for local programming terminal and field slave devices.
- Onboard system diagnostics, fault logging, battery‑backed RAM for data retention during power loss.
Installation Requirements
- Install into dedicated CPU slot of Series 90‑30 main baseplate.
- Confirm rack power‑supply current rating satisfies CPU load requirement.
- Mount IC693ACC302 lithium backup‑battery module to preserve program & data at power‑off.
- Operate within 0‑60℃ ambient, avoid heavy dust, vibration and condensation.
- Complete hardware configuration before downloading user application logic.
Common Fault Modes
- CPU fault LED on: watchdog timeout, program error, memory parity failure.
- Cannot switch to RUN state: program missing, hardware config mismatch, key‑switch set to STOP.
- Ethernet / serial communication breakdown: cable fault, incorrect IP or SNP/SNPX parameter setup.
- Program & register data lost after power cycle: backup battery low voltage or defective.
- Real‑time clock not working: backup battery failure, battery replacement required.
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