The 07 KT 98 basic unit operates as a versatile component in decentralized automation systems. It can function as a bus master or slave in the Advant Controller 31, or as a standalone unit. It requires a power supply of 24 V DC.

Main Features

• Digital Inputs:
  • 24 digital inputs with LED displays.
• Digital Outputs:
  • 16 digital transistor outputs with LED displays.
  • 8 digital inputs/outputs with LED displays.
• Analog Inputs:
  • 8 individually configurable analog inputs:
    • Voltage: 0…10 V, 0…5 V, ±10 V, ±5 V.
    • Current: 0…20 mA, 4…20 mA.
    • Differential inputs and Pt100 (2-wire or 3-wire).
    • Configurable as digital inputs.
• Analog Outputs:
  • 4 individually configurable analog outputs: ±10 V, 0…20 mA, 4…20 mA.
• Counters:
  • 2 counters for frequencies up to 50 kHz, configurable in 7 operating modes.
• Communication Interfaces:
  • 1 CS31 system bus interface for expansion.
  • 1 interface for connecting communication modules (e.g., 07 KP 90).
  • 2 serial interfaces (COM1, COM2):
    • MODBUS interfaces.
    • Programming and test functions.
    • Freely programmable interfaces.
• Real-Time Clock:
  • Integrated real-time clock for timekeeping.
• Diagnostics:
  • LEDs for operating conditions and error messages.
  • Extensive diagnosis functions including self-diagnosis and system bus diagnosis.
• User Convenience:
  • Detachable screw-type terminal blocks.
  • Fastening options: screws or DIN rail.
  • RUN/STOP switch for program execution control.
• Data Storage:
  • Integrated Flash EPROM for storing programs and data.
  • Exchangeable SmartMedia Card (07 MC 90) for user data and operating system updates.
  • Lithium battery (07 LE 90) for backing up RAM data and real-time clock.

Project Planning / Start-Up

• Programming:
  • Use AC31 programming software on IBM-compatible PCs (refer to documentation 907 AC 1131).
• Online Modifications:
  • Modify user programs without interrupting operation.
• Operating Modes:
  • Stand-alone basic unit.
  • Bus master basic unit.
  • Slave basic unit.
• Data Backup:
  • Save data during power cycles using the integrated battery or Flash EPROM.
• PROFIBUS DP Interface:
  • Project planning aligns with procedures for 07 KT 97. See the “System Description” for details.