Product Introduction

Model Explanation

• 07: Procontic 90 / AC31 series platform

• KT: CPU with DC transistor outputs

• 98: High‑capacity basic controller grade

• ‑S: Safety‑certified variant (SIL 2/PL d, safety I/O & logic)

• ‑ARCNET: Onboard ARCNET for safety‑related real‑time communication

Technical Parameters

• Part Number: GJR5253100R0260

• Processor: 32‑bit RISC (same as 07KT98)

• 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 (safety recipes/critical data)

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

• Safety I/O: Dedicated safety‑related DI/DO for SIL 2/PL d circuits (emergency stop, safety interlocks)

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

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

• Safety Certification: SIL 2 (IEC 61508), PL d (EN ISO 13849‑1)

• Operating Temperature: 0°C to +55°C (standard industrial; extended ‑25°C to +70°C on request)

• Storage Temperature: -40°C to +85°C

• Protection Class: IP20

• Dimensions: 180 × 100 × 95 mm

• Weight: ≈1.0 kg

• Certifications: CE, UL, CSA, RoHS, safety‑related EMC compliance

Interface & Communication Configuration

• ARCNET: Onboard (standard) for deterministic safety networking (real‑time safety data exchange)

• COM1: RS‑232 for programming, HMI, safety data logging

• COM2: RS‑485 for Modbus RTU, CS31 system bus (safety I/O expansion)

• CS31 System Bus: Up to 31 remote I/O slaves (including safety I/O modules)

• Ethernet: Optional 10/100 Mbps for non‑safety communication (Modbus TCP/IP)

• Safety Protocol: ARCNET for safety‑critical data (redundant, deterministic)

• LED Indicators: PWR, RUN, ERR, SAFE (safety status), TX/RX (RS‑485), NET (ARCNET)

• Programming Tool: Control Builder AC31 + Safetyconf (safety logic configuration)

• RTC: Integrated for safety event time‑stamping

• Storage: SmartMedia card for program/safety logic backup

Core Functions

1. Functional Safety (SIL 2/PL d): Dedicated safety I/O and logic for emergency stop, safety doors, and process safety; certified per IEC 61508/EN ISO 13849‑1.

2. Large Safety‑Optimized Memory: 1 MB program + 1 MB data + 256 kB RETAIN supports complex safety algorithms and recipe storage.

3. High‑Density Mixed I/O: 24DI/16DO + 8AI/4AO plus dedicated safety I/O for integrated safety and standard control.

4. Deterministic ARCNET Safety Network: Onboard ARCNET for real‑time, redundant safety communication between controllers.

5. Multi‑Protocol Comms: ARCNET (safety), Ethernet (non‑safety), Modbus RTU, CS31 for seamless integration.

6. Safety Data Retention: 256 kB RETAIN preserves safety‑critical data during power cycles.

7. Safetyconf Configuration: Dedicated software for safety logic setup, validation, and diagnostics.

Application Scenarios

• Safety‑Critical Process Control: Chemical, oil/gas, pharmaceutical plants (SIL 2/PL d safety loops).

• Machine Safety: Packaging, automotive assembly, robotics (emergency stop, safety interlocks).

• Distributed Safety Systems: Factory‑wide safety networks via ARCNET, remote safety I/O monitoring.

• Legacy Safety System Upgrades: Replacing older AC31 safety CPUs with higher memory/performance.

• Water/Wastewater Safety: Pump station interlocks, overflow protection, emergency shutdowns.

Usage & Maintenance Instructions

• Installation: DIN rail mount; 50 mm clearance for ventilation; separate safety/standard wiring.

• Wiring: Shielded cables for ARCNET/Ethernet; safety I/O cables routed separately; torque terminals 0.5–0.8 Nm.

• Power‑On Check: Verify 24 VDC; PWR LED steady on; SAFE LED green (safety logic OK); ERR LED off.

• Programming: Use Control Builder AC31 + Safetyconf; download safety logic via ARCNET/Ethernet; validate safety logic before deployment.

• Routine Maintenance: Quarterly safety I/O continuity check; clean vents every 6 months; monitor SAFE/ERR LEDs.

• Troubleshooting: SAFE LED red = safety fault (check interlocks/wiring); ARCNET faults = verify cables/addresses; I/O errors = check safety sensor/actuator wiring.

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

• Replacement: Disconnect power; use identical 07KT98‑S; reconfigure safety logic/ARCNET parameters via Safetyconf.