Indutron Industrieelektronik GmbH is a specialist in the customized development of measurement and testing technology and software for industrial applications.

The NIP Module (NIP = Node for Interpolation) has been developed for local digitizing of sensitive analog signals of incremental encoders, i.e. probes, rotary encoders (short analog cabling). It is available with up to three independent channels and various input interfaces. A linear interpolation of the input signals increases the measurement resolution significantly. The digitized measurement values are transmitted to the attached control computer (i.e. PLC) via the integrated fieldbus interface (CANopen or Profibus-DP).

Applications:

The NIP Module is specially designed for length and distance measurement. Due to the decentralized digitalization of the sinusoidal analog input signals, probability of interference is considerably reduced if used in testing facilities and measurement equipment.

Features:

There are various types of the NIP Module available. These are different in terms of:

• Number of input channels: One up to three channels. All input channels work totally independent from each other.

• Type of input interface:
• 11 uApp current interface for incremental probes like linear, rotary and angular encoders/length gauges
• 1 Vpp voltage interface for incremental probes like linear, rotary and angular encoders/length gauges
• TTL digital interface for incremental probes like linear, rotary and angular encoders/length gauges
• SSI digital interface for absolute encoders
• EnDat digital interface for absolute encoders

• Interpolation factors from 1 up to 250 (in combination with analog incremental interfaces 11 uApp and 1Vpp only).

• Type of fieldbus interface:
• CANopen or Profibus-DP
• Customized solutions upon request

Technical data:

• Incremental counter: 32 bits
• Max. Input frequency (f_max): 2 MHz
• Acquisition time: 150 us (including interpolation)
• Hold-up and Speed Detection
• Error detection:
• No probe attached / poor input signals
• Maximum input frequency exceeded
• Maximum motion speed exceeded
• Protection class: IP65