Product Introduction

Model Explanation

• 07: Procontic 90 / AC31 series platform

• KT: CPU with DC transistor outputs

• 98: High‑capacity basic controller grade (max memory & I/O)

• (No suffix): Standard ARCNET/Ethernet enabled variant

Technical Parameters

• Part Number: GJR5253100R0278

• Processor: 32‑bit RISC

• Power Supply: 24 VDC (18–30 VDC), ≤20 W, reverse polarity protection

• Memory: 1 MB Flash (program); 1 MB RAM (data); 256 kB non‑volatile RETAIN (recipes/cumulative values)

• Onboard Digital I/O: 24 × 24 VDC DI (sink/source, isolated, 3 groups of 8); 16 × transistor DO (24 VDC/0.5 A, isolated, 2 groups of 8, short‑circuit protected)

• Onboard Analog I/O: 8 × 12‑bit AI (configurable 0–10 V/±10 V/4–20 mA/PT100 2/3‑wire); 4 × 12‑bit AO (configurable 0–10 V/4–20 mA)

• High‑Speed Counter: 2 × 50 kHz (hardware, 7 modes)

• Operating Temperature: 0°C to +55°C (standard industrial)

• Storage Temperature: -40°C to +85°C

• Protection Class: IP20

• Dimensions: 180 × 100 × 95 mm

• Weight: ≈1.0 kg

• Certifications: CE, UL, CSA, RoHS

Interface & Communication Configuration

• COM1: RS‑232 for programming, HMI, ASCII

• COM2: RS‑485 for Modbus RTU master/slave, CS31 bus

• CS31 System Bus: Up to 31 remote I/O slaves

• ARCNET: Onboard (standard) for high‑speed real‑time networking

• Ethernet: Optional 10/100 Mbps (model dependent) for Modbus TCP/IP, HTTP

• Extension Port: For Profibus‑DP, additional comms modules

• LEDs: PWR, RUN, ERR, TX/RX (RS‑485), NET (ARCNET/Ethernet)

• Programming Tool: 907AC1131 (V4.1+ for ARCNET)

• RTC: Integrated for data logging/time‑stamping

• Storage: SmartMedia card for program/data backup

Core Functions

1. Large Memory Capacity: 1 MB program + 1 MB data + 256 kB RETAIN supports complex algorithms, PID loops, and recipe storage.

2. Native ARCNET/Ethernet: High‑speed deterministic networking for distributed control and remote monitoring.

3. High‑Density Mixed I/O: 24DI/16DO + 8AI/4AO for analog/digital control in process and manufacturing.

4. Dual 50 kHz Counters: For high‑speed encoders, flow meters, motion control.

5. Multi‑Protocol Comms: ARCNET, Ethernet TCP/IP, Modbus RTU, CS31 for seamless system integration.

6. Enhanced Data Retention: 256 kB RETAIN preserves critical data during power cycles.

7. SmartMedia Backup: Easy program/data backup/restore via external card.

Application Scenarios

• Medium‑to‑Large Process Control: Chemical, water/wastewater, food/beverage, pharmaceutical plants.

• Distributed Automation: Factory‑wide networks, production lines with remote I/O.

• Legacy System Migration: Upgrading older AC31/Procontic systems needing more memory/networking.

• High‑Reliability Manufacturing: Automotive assembly, packaging, textile machinery.

• Energy & Utilities: Power generation, oil/gas, HVAC with complex control logic.

Usage & Maintenance Instructions

• Installation: DIN rail mount; vertical orientation, 50 mm clearance for ventilation.

• Wiring: Shielded cables for analog/Ethernet; separate power/signal wires. Torque terminals 0.5–0.8 Nm.

• Power‑On Check: Verify 24 VDC; PWR LED steady on. Check NET LED for link status.

• Programming: Use 907AC1131; download via RS‑232, CS31, or Ethernet. Back up to SmartMedia card regularly.

• Routine Maintenance: Quarterly terminal tightness check; clean vents every 6 months. Monitor ERR LED (flashing = fault).

• Troubleshooting: ARCNET/Ethernet faults: check cables, addresses, baud rates. I/O errors: verify sensor/actuator wiring and signal types.

• Environment: Avoid moisture/corrosive gases. Operate 0°C to +55°C, 5%–95% non‑condensing humidity.

• Replacement: Disconnect power; use identical 07KT98. Reconfigure network/comm parameters to match system.