Brand: Siemens Description: Digital input SM 321 Condition: Brand New Certificate: COO TEST REPORT WARRANTY LETTER Warranty: 1 year Inventory Qty: 1 Payment Term: T/T Shipping Port: Shenzhen Siemens 6ES7321-1BL00-0AA0 SIMATIC S7-300, Digital input SM 321, Isolated 32 DI, 24 V DC, 1x 40-pole
Manufacture |
Siemens |
Model Number |
6ES7321-1BL00-0AA0 |
Catalog |
SIMATIC S7-300 |
Country Of Origin |
Germany |
HS CODE |
8538900000 |
Dimension |
4.0cm×12.5cm×12.0cm |
Packing Dimension |
6.0cm×14.5cm×14.0cm |
Weight |
0.26kg |
Product Description
Function:Siemens 6ES7321-1BL00-0AA0 used to connect 24V DC digital signals and convert external signals into logic levels (0/1) that can be processed by PLC.
Number of channels: 32 input points, supporting high-density signal acquisition.
Electrical isolation: Group isolation between channels (usually 8 points per group) to improve anti-interference ability.
Compatibility:Siemens 6ES7321-1BL00-0AA0 can be plugged into the DIN rail of S7-300 and work with CPU and other modules.
Technical Parameters
Input voltage:24V DC (rated range: 20.4V~28.8V)
Input current: Typical value about 7mA/point (at 24V)
Signal type:Siemens 6ES7321-1BL00-0AA0 supports sink or source input
Response time: 0.1ms~20ms (configurable filter time)
Isolation voltage: 500V (between channel and backplane bus)
Connection method: Front connector (need to be ordered separately, such as 20-pin or 40-pin)
Power consumption: About 2W (from backplane bus)
Operating temperature: -20°C ~ +60°C
Protection level: IP20 (indoor installation only)
Product features
High-density design: 32-point input saves installation space and is suitable for dense signal applications.
Flexible wiring:Siemens 6ES7321-1BL00-0AA0 supports source/sink input, suitable for PNP/NPN sensors.
Diagnostic function: The status of each channel can be monitored through the LED indicator (green = normal signal, red = fault).
Modular expansion: seamless integration with other S7-300 modules.
Application areas
Industrial automation: production line control, packaging machinery, assembly lines, etc.
Process control: monitoring switch status, limit signals, button inputs, etc.
Logistics system: sorting machine, conveyor belt sensor signal acquisition.
Energy management: equipment status monitoring.
Installation and configuration
Hardware: installed via DIN rail, connected to adjacent modules using U-type bus connector.
Software: configure module parameters via STEP 7 or TIA Portal.