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)

• B: Extended temperature variant (‑25°C to +70°C), enhanced EMC

Technical Parameters

• Part Number: GJR5253100R3160

• Processor: 32‑bit RISC

• Power Supply: 24 VDC (18–30 VDC), ≤22 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 configurable modes)

• Operating Temperature: ‑25°C to +70°C (extended industrial range)

• Storage Temperature: -40°C to +85°C

• Protection Class: IP20

• Dimensions: 180 × 100 × 95 mm

• Weight: ≈1.0 kg

• Certifications: CE, UL, CSA, RoHS, enhanced EMC compliance

Interface & Communication Configuration

• Ethernet Port: 10/100 Mbps TCP/IP, supports Modbus TCP/IP, HTTP, remote programming

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

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

• CS31 System Bus: Connects up to 31 remote I/O slaves for expansion

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

• Extension Port: For Profibus‑DP or additional communication modules

• LED Indicators: PWR, RUN, ERR, ETH LINK/ACT, TX/RX (RS‑485), NET (ARCNET)

• Programming Tool: Control Builder AC31 (V4.1+ for ARCNET)

• Real‑Time Clock (RTC): Integrated for data logging and time‑stamping

• Storage: SmartMedia card for program/data backup/restore

Core Functions

1. Extended Temperature Reliability: Operates reliably from ‑25°C to +70°C, suitable for cold storage, outdoor machinery, and high‑temperature industrial sites.

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

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

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

5. Multi‑Protocol Communication: Native ARCNET, Ethernet TCP/IP, Modbus RTU, and CS31 bus enable seamless integration with diverse devices and systems.

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

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

Application Scenarios

• Harsh Environment Automation: Cold storage logistics, outdoor processing plants, mining, and oil/gas equipment with extreme temperature fluctuations.

• Medium‑to‑Large Process Control: Chemical, water/wastewater, food/beverage, and pharmaceutical plants requiring high memory and extended temperature tolerance.

• Distributed Control Systems: Factory‑wide networks, production lines with remote I/O, and distributed monitoring systems via ARCNET/Ethernet.

• Legacy System Upgrades: Replacing older AC31/Procontic 07KT98 units in systems needing extended temperature range and enhanced EMC.

• High‑Reliability Manufacturing: Automotive assembly, packaging, and textile machinery with complex control logic and environmental challenges.

Usage & Maintenance Instructions

• Installation: Mount on standard DIN rail; ensure vertical orientation with 50 mm clearance around the unit for ventilation.

• Wiring: Use shielded cables for analog and Ethernet signals; separate power and signal wiring to reduce noise. Tighten terminals to recommended torque (0.5–0.8 Nm).

• Power‑On Check: Verify 24 VDC supply voltage; check PWR LED (steady on = normal). Confirm ETH LINK/ACT and NET LED status for network connections.

• Programming: Use Control Builder AC31; download programs via Ethernet, RS‑232, or CS31 bus. Back up programs to SmartMedia card regularly.

• Routine Maintenance: Inspect terminals quarterly for tightness; clean dust from ventilation slots every 6 months. Monitor ERR LED (flashing = fault).

• Troubleshooting: For Ethernet/ARCNET faults, check cables, IP addresses, and network settings. For Modbus RTU/CS31 errors, verify baud rate and address configuration.

• Environmental Protection: Avoid exposure to direct moisture and corrosive gases. Operate within ‑25°C to +70°C and 5%–95% non‑condensing humidity.

• Replacement: Disconnect power before replacement; use identical model (07KT98B) and reconfigure communication/network parameters to match the system.