The Siemens 6ES7521-1BL00-0AB0 is a programmable logic controller (PLC) digital input module designed for industrial automation. Key attributes include high reliability, robust performance, and easy integration with Siemens systems. Typical applications involve input signal processing in manufacturing and process control environments.
| Type |
PLC digital input |
| Number of Digital Inputs |
32 |
| Number of Digital Outputs |
0 |
| Appendant operation agent (Ex ia) |
FALSE |
| Appendant operation agent (Ex ib) |
FALSE |
| Colour |
Multicolour |
| Depth |
129mm |
| Digital inputs configurable |
TRUE |
| Digital outputs configurable |
N/A |
| Explosion safety category for dust |
None |
| Explosion safety category for gas |
ATEX gas-ex-protection, Cat. 3G |
| Height |
147mm |
| Input current at signal 1 |
2.5A |
| Misc Attribute |
6ES7521-1BL00-0AB0 |
| Number of digital inputs (max.) |
32 |
| Output Current |
N/A |
| Performance level according to EN ISO 13849-1 |
N/A |
| Permitted voltage at input |
-30 - 30V |
| Permitted voltage at output |
N/A |
| Power Consumption |
N/A |
| Redundancy |
FALSE |
| Short-circuit protection, outputs available |
N/A |
| SIL according to IEC 61508 |
N/A |
| Suitable for safety functions |
FALSE |
| Supply voltage AC 50 Hz |
N/A |
| Supply voltage AC 60 Hz |
N/A |
| Supply voltage DC |
19.2 - 28.8V |
| Time delay at signal change |
0.05 - 20ms |
| Type of digital output |
None |
| Type of electric connection |
N/A |
| Type of output voltage |
N/A |
| Type of voltage (input voltage) |
DC |
| Voltage type (supply voltage) |
DC |
| Weight |
0 |
| Width |
35 |