Product information
Overview
Applications
- NAMUR signal acquisition: Acquires signals from NAMUR encoders, changeover contacts and 2-wire sensors.
- Pulse counting: Counts input pulses with configurable counters up to 20 kHz.
Key Features
- NAMUR digital inputs: Provides 16 parameterizable NAMUR digital inputs in groups of 8, with all 16 inputs simultaneously controllable.
- NAMUR encoder supply: Provides 16 outputs with 2x 8.2 V DC and short-circuit protection; maximum output current is 100 mA per group and 200 mA per module.
- High-speed counting: Supports up to 4 counters, with 4 counters at maximum 10 kHz or 2 counters at maximum 20 kHz plus 2 counters at maximum 10 kHz; counting width is 32 bit.
- Input processing: Provides parameterizable input delay from 0.05 to 20 ms, pulse extension, rising-edge, falling-edge and edge-change evaluation, signal-change flutter monitoring, and signal inversion.
- Diagnostics and interrupts: Includes diagnostics, diagnostic alarms, hardware interrupts, supply-voltage and encoder-power-supply monitoring, wire-break detection, and RUN, ERROR, PWR and channel-status LEDs.
- Supply and installation scope: Rated supply voltage is 24 V DC with a permissible range of 19.2 V to 28.8 V and reverse-polarity protection. All necessary shielding components are included; the front connector is ordered separately.
Technical Summary
| Product type | DI 16xNAMUR HF |
|---|---|
| Digital inputs | 16; NAMUR |
| Channel arrangement | 16 channels in groups of 8 |
| Rated supply voltage | 24 V DC |
| NAMUR encoder supply | 16 outputs; 2x 8.2 V DC |
| Maximum counting frequency | 20 kHz; see manual for details |
| Input delay | 0.05 to 20 ms |
| Communication and engineering | PROFINET from GSD V2.3 / -; PROFIBUS from GSD V1.0 / V5.1; STEP 7 V17 or higher |
| Firmware version | V1.0.0 |
| Power consumption from backplane bus | 0.6 W |
| Scope of supply | All necessary components for shielding included; front connector ordered separately |
Frequently Asked Questions
Which encoder types can the 6ES7521-7TH00-0AB0 connect?
It can connect NAMUR encoders, changeover contacts according to EN 60947, single contacts, and 2-wire sensors. Changeover contact configurations have no CO contact.
What supply voltage does this module require?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V and reverse-polarity protection.
What counting performance is available?
The module supports a maximum counting frequency of 20 kHz and a 32-bit counting width. The counter arrangement is 4 counters at maximum 10 kHz or 2 counters at maximum 20 kHz plus 2 counters at maximum 10 kHz; see the manual for details.
Is the front connector included?
It is without the front connector; the front connector with screw terminals or push-in must be ordered separately.
What information should I provide for a quotation?
Please provide the required quantity, destination and project or MRO list context for model-specific quotation support.
