Product Description
Key Features
- Digital input configuration: DI 16x110VDC HF with 16 digital inputs in groups of 1; inputs are parameterizable and support sourcing/sinking operation.
- Input voltage: Rated DC input values: 24 V, 48 V, 72 V, 96 V, 110 V, 125 V. Rated AC input values: 24 V, 48 V, 125 V (50 – 60 Hz).
- Input delay: Parameterizable DC input delay: 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms; 20 ms fixed with AC.
- Counter function: Counter function from FS04 with 2 maximum counters on Channel 0 and 1, 6 kHz maximum counting frequency, 32 bit counting width, and up counting direction.
- Diagnostics and interrupts: Diagnostics function, diagnostic alarm, hardware interrupt, wire-break diagnosis to I < 550 μA, RUN and ERROR LEDs, and channel and module diagnostics LEDs.
- SIPLUS configuration: Based on 6ES7521-7EH00-0AB0 with conformal coating, -40…+70 °C, and OT4 with ST1/2 (+85 °C for 10 minutes). Firmware update is possible.
Applications
- Digital input acquisition: The module provides 16 parameterizable digital inputs for digital input operation.
- Counter operation: The module supports counter operation from FS04, with counters on Channel 0 and 1 and up counting direction.
Technical Summary
| Product type designation | DI 16x110VDC HF |
|---|---|
| Product lifecycle | Active Product |
| Digital inputs | 16; > +60 °C number of simultaneously controllable inputs max. 4 (no adjacent points) |
| Rated input voltage (DC) | 24 V; 48 V, 72 V, 96 V, 110 V, 125 V |
| Rated input voltage (AC) | 24 V; 48 V, 125 V (50 – 60 Hz) |
| Input delay | 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms parameterizable with DC, 20 ms fixed with AC |
| Counter function | 2; Channel 0 and 1; 6 kHz maximum counting frequency; 32 bit counting width |
| Firmware update possible | Yes |
| Based on | 6ES7521-7EH00-0AB0 |
| Potential separation | Between the channels and backplane bus: Yes; between channels, in groups of 1 |
Frequently Asked Questions
What exact product identity should be confirmed for this module?
Confirm Siemens 6AG2521-7EH00-4AB0, product type designation DI 16x110VDC HF, and the 6ES7521-7EH00-0AB0 base reference.
What input voltage values are supported?
Rated DC values are 24 V, 48 V, 72 V, 96 V, 110 V, and 125 V. Rated AC values are 24 V, 48 V, and 125 V (50 – 60 Hz).
What counter configuration does the module have?
Counter operation is available from FS04, with 2 maximum counters on Channel 0 and 1, 6 kHz maximum counting frequency, and 32 bit counting width.
What environmental configuration should be checked?
Confirm the conformal coating, -40…+70 °C, and OT4 with ST1/2 (+85 °C for 10 minutes).
What should be included in a legacy-part verification request?
Provide the exact order number, required quantity, destination, requested date, and preferred condition.
