Product Overview
Technical Summary
| Product function | Isochronous mode: No |
|---|---|
| Digital input capacity | 16 digital inputs |
| Load voltage, DC | 24 V rated; permissible range 24 V to 48 V DC |
| Load voltage, AC | 24 V rated; permissible range 24 V to 48 V AC at 0 … 63 Hz |
| Input voltage type | AC/DC |
| Input current from backplane bus | 5 V DC, max. 100 mA |
| Required front connector | 40-pin |
| Potential separation | Between channels, in groups of 1; between channels and backplane bus via optocoupler |
| Product lifecycle | Product cancellation |
Key Features
16 isolated digital inputs with an IEC 61131 type 1 input characteristic curve.
Load voltage: 24 V DC rated, permissible from 24 V to 48 V DC; 24 V AC rated, permissible from 24 V to 48 V AC at 0 … 63 Hz.
Required front connector: 40-pin.
Digital inputs have potential separation between channels, in groups of 1, and between the channels and backplane bus via an optocoupler.
Horizontal installation supports 16 inputs up to 40 °C and up to 60 °C; vertical installation supports 16 inputs up to 40 °C. Dimensions: 40 mm width, 125 mm height, 120 mm depth.
Product cancellation.
Frequently Asked Questions
What is the exact function of Siemens 6ES7321-1CH00-0AA0?
It is a SIMATIC S7-300 digital input SM 321 spare part with 16 isolated digital inputs for AC/DC signals.
What voltage range does the module support?
The load voltage is rated at 24 V DC or 24 V AC. The permissible range is 24 V to 48 V for DC and AC; AC operation is at 0 … 63 Hz.
Which front connector is required?
A 40-pin front connector is required.
What should be included in a project quotation request?
Include the exact line item, requested quantity, destination, schedule context, and any additional BOM lines.
