Siemens 6ES7321-1CH80-0AA0
MPN6ES7321-1CH80-0AA0
End of Life
SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, FOR EXPANDED TEMPERATURE RANGE, 16 DI, DC 48 - 125V, 20 PIN
$208.28Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Inputs
| Parameter | Value |
|---|---|
| Number of digital inputs | 16 |
| Max. inputs, up to 40 °C | 8 |
| Max. inputs, up to 60 °C | 8 |
| 2-wire sensor support | Yes |
Electrical
| Parameter | Value |
|---|---|
| Rated value (DC) | 48 V |
| Input voltage at signal "1" | 30 V DC to 146 V DC |
| Input voltage at signal "0" | -146 V DC to +15 V DC |
| Permissible range, lower limit (DC) | 48 V |
| Permissible range, upper limit (DC) | 125 V |
| Input current at signal "1" (typ.) | 3.5 mA |
| Power loss (typ.) | 4.3 W |
| Current consumption from backplane bus (5 V DC), max. | 40 mA |
| Permissible quiescent current, 2-wire sensor, max. | 1 mA |
| Cable length, unshielded, max. | 600 m |
| Cable length, shielded, max. | 1 000 m |
Timing
| Parameter | Value |
|---|---|
| Input delay 0 to 1, min. | 0.1 ms |
| Input delay 1 to 0, min. | 0.7 ms |
| Input delay 0 to 1, max. | 3.5 ms |
| Input delay 1 to 0, max. | 3 ms |
Diagnostics & Isolation
| Parameter | Value |
|---|---|
| Diagnostics function | No |
| Isolation between channels | Yes |
| Isolation between channels and backplane bus | Yes |
| Isolation test voltage | 1 500 V DC |
| Channels per isolated group | 8 |
| Status indicator per channel (green) | Yes |
Mechanical
| Parameter | Value |
|---|---|
| Depth | 120 mm |
| Height | 125 mm |
| Width | 40 mm |
MPN
6ES7321-1CH80-0AA0