Product Description

Model Definition

• 07 = Procontic 90 / Advant Controller 31 (AC31) series

• KT = CPU with transistor outputs (DC 24 V)

• 94 = High‑end mixed I/O grade (24DI/16DO+8AI/4AO)

• S = Safety (SIL2/SIL3 certified per IEC 61508)

• G = Conformal coated (protects against humidity, dust, salt mist)

• Part Number = GJR5252100Rxxxx (SG‑specific variant)

Technical Specifications

• Processor: 16‑bit Motorola 68HC11

• Power Supply: 24 VDC (18–30 VDC), ≤12 W, reverse‑polarity protected

• Memory: 240 KB Flash EPROM (program); 4.4 KB non‑volatile RAM (data)

• Onboard I/O (mixed):

  24 × 24 VDC digital inputs (sink/source configurable);

  16 × transistor digital outputs (24 VDC, 0.5 A/channel, short‑circuit protected);

  8 × analog inputs (0–10 V / 4–20 mA, 12‑bit);

  4 × analog outputs (0–10 V / 4–20 mA, 12‑bit)

• High‑Speed Counter: 1 channel, up to 50 kHz

• Safety Level: SIL2 (TÜV‑certified), capable of SIL3

• Operating Temperature: −20 °C to +60 °C (extended range, coated)

• Storage Temperature: −40 °C to +70 °C

• Humidity: 5%–95% non‑condensing

• Protection: PCB conformal coating; IP20; reverse‑polarity and short‑circuit protection

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

• Weight: Approx. 0.85 kg

• Certifications: CE, UL, CSA, RoHS, TÜV SIL2/SIL3

Interface and Communication Configuration

• Front Indicators: LEDs for PWR, RUN, ERR, TX, RX, and safety status

• COM1: RS‑232 (programming, HMI, ASCII)

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

• CS31 System Bus: Up to 31 remote I/O slaves for distributed safety control

• FieldBus Plug (FBP): Optional Profibus DP or DeviceNet

• Programming Software: Control Builder AC31, 907 PC 331 (supports safety logic)

• Expansion: Up to 744 DI, 496 DO, 96 AI, 48 AO via CS31 expansion modules

Core Functions

• Safety Control (SIL2/SIL3): Integrated safety logic for emergency stop, safety gate monitoring, safe speed control; compliant with IEC 61508

• Mixed I/O Handling: Simultaneous processing of 24DI, 16DO, 8AI, 4AO for complex analog/digital control

• Distributed I/O Master: Manages up to 31 remote I/O stations over CS31 bus for distributed safety systems

• High‑Speed Counting: 50 kHz hardware counter for encoder and high‑speed pulse applications

• Ruggedized Operation: Extended temperature range (−20 °C to +60 °C) and conformal coating for humidity, dust, and corrosion resistance

• Data Logging & Timing: Integrated RTC for event timestamping and non‑volatile data storage

• Drop‑In Compatibility: Fully interchangeable with 07KT94, 07KT94‑S, 07KT94K; same programming and wiring

Application Scenarios

• Safety‑Critical + Harsh Environments: Chemical, pharmaceutical, oil/gas (corrosive, explosive, humid areas)

• Food & Beverage: Washdown zones, high humidity, chemical exposure

• Water & Wastewater: Pump stations, valve control in moist/corrosive environments

• Mining & Metallurgy: Dust, vibration, extreme temperature conditions

• Outdoor & Unattended Sites: Solar plants, remote conveyor systems, long‑term low‑maintenance operation

• Factory Automation: Assembly lines, material handling, packaging machinery requiring safety integrity

Usage and Maintenance Instructions

• Installation: Mount on standard 35 mm DIN rail or panel in a well‑ventilated enclosure. Maintain clearance for heat dissipation; avoid direct water, chemicals, or excessive dust exposure.

• Wiring: Use shielded twisted‑pair cables for RS‑485/CS31 communication to reduce EMI. Observe power and I/O polarity to prevent damage.

• Program Backup: Regularly back up safety and user programs via 07LE90 memory module to avoid data loss.

• Routine Maintenance: Annual program backups; periodic LED status checks for safety and fault diagnosis. Inspect wiring for tightness and corrosion.

• Environmental Care: Keep enclosure clean and dry to preserve conformal coating protection. Do not operate outside rated temperature/humidity limits.

• Replacement: Directly interchangeable with standard 07KT94/94‑S/94K; no software or wiring changes required.