
Siemens 6ES7321-7EH00-0AB0
Spare part ********* SIMATIC S7/PCS 7 SM 321 digital input, 16 DI; 24/125 V DC, 1 x 40-pole
- MPN
- 6ES7321-7EH00-0AB0
- Category
- Digital modules
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What is the Siemens 6ES7321-7EH00-0AB0?
********** spare part ********* SIMATIC S7/PCS 7 SM 321 digital input, 16 DI; 24/125 V DC, 1 x 40-pole, connection with wire break diagnostics, hardware interrupt diagnostics
Specifications
General information
| Product function — Isochronous mode | No |
Supply voltage
| Load voltage L+ — Rated value (DC) | 24 V |
| Load voltage L+ — permissible range, lower limit (DC) | 24 V |
| Load voltage L+ — permissible range, upper limit (DC) | 125 V |
| Load voltage L+ — Reverse polarity protection | Yes |
Input current
| from backplane bus 5 V DC, max. | 90 mA |
Power loss
| Power loss, typ. | 2 W; V_in = 24 V DC |
Digital inputs
| Number of digital inputs | 16 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Number of simultaneously controllable inputs — horizontal installation — up to 60 °C, max. | 16; V_in = 100 V DC |
| Number of simultaneously controllable inputs — vertical installation — up to 40 °C, max. | 16; V_in = 100 V DC |
| Input voltage — Rated value (DC) | 24 V; 24 V DC to 125 V DC |
| Input voltage — for signal "0" | -146 to 5V |
| Input voltage — for signal "1" | 15 to 146V |
| Input current — for signal "1", typ. | 3.5 mA |
| Input delay (for rated value of input voltage) — for standard inputs — parameterizable | Yes; 0.1 / 0.5 / 3 / 15 / 20 ms |
| Cable length — shielded, max. | 1 000 m |
| Cable length — unshielded, max. | 600 m |
Encoder
| Connectable encoders — 2-wire sensor | Yes |
| Connectable encoders — 2-wire sensor — permissible quiescent current (2-wire sensor), max. | 1 mA |
Interrupts/diagnostics/status information
| Diagnostics function | Yes; Parameterizable |
| Alarms — Diagnostic alarm | Yes; Parameterizable |
| Alarms — Hardware interrupt | Yes; Parameterizable |
| Diagnoses — Wire break | Yes; I < 1 mA |
| Diagnostics indication LED — Group error SF (red) | Yes |
| Diagnostics indication LED — Status indicator digital input (green) | Yes |
Potential separation
| Potential separation digital inputs — between the channels | No |
| Potential separation digital inputs — between the channels, in groups of | 16 |
| Potential separation digital inputs — between the channels and backplane bus | Yes; Optocoupler |
Isolation
| Isolation tested with | 3 500 V DC |
Ambient conditions
| Ambient temperature during operation — min. | 0 °C |
| Ambient temperature during operation — max. | 60 °C |
Connection method
| required front connector | 1x 40-pin |
Dimensions
| Width | 40 mm |
| Height | 125 mm |
| Depth | 120 mm |
Weights
| Weight, approx. | 200 g |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
6ES7321-7EH00-0AB0: frequently asked questions
When can 6ES7321-7EH00-0AB0 be shipped?
6ES7321-7EH00-0AB0 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 6ES7321-7EH00-0AB0 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 6ES7321-7EH00-0AB0 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 6ES7321-7EH00-0AB0, subject to availability and destination.
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