Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | SIPLUS S7-300 SM 321 digital input module |
| Digital input channels | 16 |
| Input voltage | 24 V DC rated |
| Signal 0 input voltage | -30 … +11.2 V |
| Signal 1 input voltage | 13 to 30V |
| Load voltage | 24 V DC rated; permissible 20.4 V to 28.8 V |
| Connection | 1x 20-pole |
| Diagnostics | Parameterizable diagnostics, diagnostic alarms and wire-break detection to I< 1 mA |
| Hardware interrupt | Yes; parameterizable |
| Isolation | Between digital inputs and backplane bus; optocoupler |
Applications
- Digital signal acquisition: The module provides 16 digital inputs for acquiring 24 V DC signals.
Key Features
- 16 digital inputs: The SM 321 module has 16 digital inputs with a 24 V DC rated input voltage.
- Input signal ranges: Signal 0 is -30 … +11.2 V; signal 1 is 13 to 30V, with a typical signal-1 input current of 7 mA.
- Supply and protection: The rated load voltage is 24 V DC, with a permissible range of 20.4 V to 28.8 V and reverse polarity protection.
- Diagnostics and interrupts: The module has parameterizable diagnostics, diagnostic alarms, hardware interrupts, wire-break detection and LED status indications.
- Connection and installation: Connection is 1x 20-pole. The module supports 16 inputs for horizontal installation up to 60 °C and vertical installation up to 40 °C.
Frequently Asked Questions
1. How many digital inputs does 6AG1321-7BH01-4AS0 have?
It has 16 digital inputs.
2. What input voltage does this module use?
The rated input voltage is 24 V DC. Signal 0 is -30 … +11.2 V, and signal 1 is 13 to 30V.
3. What connection is provided?
The module has 1x 20-pole connection.
4. What diagnostics does the module provide?
It provides parameterizable diagnostics, diagnostic alarms, hardware interrupts, readable diagnostic information, wire-break detection and LED indications.
