Product Overview

Model Definition

• 07: Procontic 90/31 / AC31 series

• KT: CPU with transistor outputs (DC)

• 92: High‑performance grade (Series 90)

Technical Specifications

• Part Number: GJR5250500R0262

• Power Supply: 24 VDC (18–30 VDC), ≤10 W

• User Memory: 28 kB Flash EPROM

• Onboard I/O:

  • Digital Inputs: 12 × 24 VDC

  • Digital Outputs: 8 × transistor (24 VDC/0.5 A)

  • Analog Inputs: 4 × 12‑bit (0–10 V/4–20 mA/0–5 V)

  • Analog Outputs: 2 × 12‑bit (±10 V)

• High‑Speed Counter: 1 × 50 kHz

• Communication:

  • COM1: RS‑232 (programming/ASCII)

  • COM2: RS‑485 (Modbus RTU / CS31 bus)

  • CS31 Bus: Up to 31 remote I/O modules

• Max Expansion: 744 DI / 496 DO / 96 AI / 48 AO

• Real‑Time Clock: Integrated (event timestamping)

• Operating Temperature: 0 °C to +55 °C

• Dimensions (W×H×D): 160 × 100 × 95 mm

• Weight: ~0.6 kg

• Certifications: CE, UL, CSA

Interface & Indicators

• LEDs: PWR, RUN, ERR, TX, RX (diagnostics)

• RS‑232: Programming, HMI, point‑to‑point

• RS‑485: Modbus RTU (master/slave), CS31 system bus

• Programming Software: 907 PC 331 / Control Builder AC31

Core Functions

1. Integrated Control: Ladder logic / structured text, PID, analog processing

2. Distributed I/O: CS31 bus master (31 slaves max)

3. Serial Communication: Modbus RTU, ASCII, CS31 protocols

4. High‑Speed Counting: 50 kHz input for pulse/encoder signals

5. Data Logging: RTC + non‑volatile memory, event timestamping

Applications

• Factory automation: Complex assembly lines, material handling

• Process control: Water treatment, chemical processing, HVAC

• Machine control: Textile, woodworking, plastics machinery

• System migration: Upgrade legacy Procontic CS31 installations

Installation & Maintenance

• Mounting: 35 mm DIN rail or panel mount

• Wiring: Shielded twisted pair for RS‑485/CS31

• Backup: Use 07LE90 memory module for program backup

• Maintenance: Annual program backup; periodic LED status check

• Protection: Reverse‑polarity protection on power terminals