INTKM01

Overview

The INTKM01 Time Keeper Master Module by ABB is a high-performance module designed to manage precise timekeeping and synchronization tasks for process control systems.

Power Requirements

• Operating Voltage: +5 VDC, ±5%

• Current consumption: 300 mA typical, 500 mA maximum

Microprocessor

• CPU: DSP 2101

• Instruction Cycle: 100 ns

• Timer: 16-bit interval timer with prescaler

• Port: 1 bidirectional synchronous serial port

Memory

• Boot EPROM: 64 kbyte

• RAM:

  • 16 kword

  • Program memory: 1 kword

  • Data memory: 512 words

• FIFO Buffer: 512 bytes

Frequency and Stability

• Frequency: 10 MHz

• Stability: ±1 ppm

• Aging Rate: 1 ppm/year

Time Synchronization

• Synchronization Time: ±10 µs

• Absolute Time (to INSEM01): ±1 ms

• Input: IRIG-B time code in DC level shift format (via NTST01)

• Output: RS-485 time synchronization at 62.6 kbaud to IMSET01 modules (via NTST01)

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