Product Description
Key Features
- Product identity: SIPLUS S7-300 SM 321 digital input module based on 6ES7321-7BH01-0AB0, with conformal coating.
- Digital inputs: 16 digital inputs with an IEC 61131 type 2 input characteristic curve.
- Supply and input voltage: Rated load voltage and input voltage: 24 V DC. Permissible load-voltage range: 20.4 V to 28.8 V DC.
- Diagnostics and interrupts: Diagnostics, diagnostic alarms and hardware interrupts are parameterizable; wire-break diagnostics are available to I< 1 mA.
- Installation and cables: 16 inputs are supported for horizontal installation up to 60 °C and vertical installation up to 40 °C. Maximum cable length is 1 000 m shielded or 600 m unshielded.
- Lifecycle: Product cancellation.
Technical Summary
| Product type | SIPLUS S7-300 SM 321 digital input module |
|---|---|
| Based on | 6ES7321-7BH01-0AB0 |
| Digital inputs | 16 |
| Rated load voltage | 24 V DC |
| Permissible load-voltage range | 20.4 V to 28.8 V DC |
| Input voltage for signal 0 | -30 … +11.2 V |
| Input voltage for signal 1 | 13 to 30V |
| Diagnostics | Parameterizable diagnostics function and diagnostic alarms |
| Hardware interrupt | Yes; Parameterizable |
| Isolation | Between digital inputs and backplane bus: Yes; Optocoupler |
| Product lifecycle | Product cancellation |
Frequently Asked Questions
What exact Siemens item is this?
It is 6AG1321-7BH01-4AS0, a SIPLUS S7-300 SM 321 digital input module based on 6ES7321-7BH01-0AB0.
How many digital inputs does it have?
It has 16 digital inputs.
What supply voltage does it use?
The rated load voltage and input voltage are 24 V DC; the permissible load-voltage range is 20.4 V to 28.8 V DC.
Does it support diagnostics and hardware interrupts?
Yes. Diagnostics, diagnostic alarms and hardware interrupts are parameterizable.
What is its lifecycle status?
Product cancellation.
