Product Overview

Model Definition

• 07: Procontic 90/31 / AC31 series

• KT: CPU with transistor outputs (DC)

• 93: High‑performance, high‑I/O density grade (Series 90)

Technical Specifications

• Part Number: GJR5251300R0101

• Processor: 16‑bit Motorola 68HC11

• Power Supply: 24 VDC (18–30 VDC), ≤5 W

• User Memory:

  • Program: 14 kB Flash EPROM

  • Data: 4.4 kB non‑volatile RAM

• Onboard I/O:

  • Digital Inputs: 24 × 24 VDC (sink/source)

  • Digital Outputs: 16 × transistor (24 VDC/0.5 A)

  • Analog I/O: None (digital‑only, unlike 07KT92)

• High‑Speed Counter: 1 × 10 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

• Operating Temperature: -20 °C to +60 °C

• Dimensions (W×H×D): 152 × 102 × 254 mm

• Weight: ~1.0 kg

• Certifications: CE, UL, CSA, RoHS

Interface & Indicators

• LEDs: PWR, RUN, ERR, TX, RX, channel status

• 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. High‑Density Digital Control: 24DI/16DO for large discrete applications

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

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

4. High‑Speed Counting: 10 kHz input for pulse/encoder signals

5. Data Logging: RTC + non‑volatile memory

Applications

• Factory automation: Large assembly lines, material handling

• Process control: Packaging, bottling, discrete manufacturing

• 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

• Maintenance: Annual program backup; periodic LED check

• Protection: Reverse‑polarity protection on power