6ES7321-7BH01-0AB0 - Siemens
MPN6ES7321-7BH01-0AB0
End of Life
SIMATIC S7-300, Digital input SM 321, isolated, 16 DI; 24 V DC, 1x 20-pole, process interrupt, diagnostics, suitable for isochronous mode
$216.00 – $397.00Ref. price · indicative, final on quote
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MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
I/O
| Parameter | Value |
|---|---|
| Digital inputs | 16 |
Electrical
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Permissible range, lower limit (DC) | 20.4 V |
| Permissible range, upper limit (DC) | 28.8 V |
| For signal "1" | 13 to 30V |
| For signal "0" | -30 to +5 V |
| Current for signal "1" (typ.) | 7 mA |
| Power loss (typ.) | 4 W |
| Current consumption from backplane bus (5 V DC), max. | 130 mA |
| Current consumption from load voltage L+ (no load), max. | 90 mA |
| Short-circuit protection | Yes; Electronic |
| Reverse polarity protection | Yes |
| Isolation test voltage | 500 V DC |
| Isolation: between channels | No |
| Isolation: channels to backplane bus | Yes; Optocoupler |
| Max. cable length, shielded | 1 000 m |
| Max. cable length, unshielded | 600 m |
Performance
| Parameter | Value |
|---|---|
| Parameterizable | Yes; 0.1 / 0.5 / 3 / 15 / 20 ms |
| Diagnostic alarm | Yes; Parameterizable |
| Diagnostics function | Yes; Parameterizable |
| Group fault indicator (SF, red LED) | Yes |
Mechanical
| Parameter | Value |
|---|---|
| Height | 125 mm |
| Width | 40 mm |
| Depth | 120 mm |
| Weight (approx.) | 200 g |
MPN
6ES7321-7BH01-0AB0