AI Assistant
Cart
Quote
SIMATIC S7-400 SM 421, DI 16x24 V DC Input delay 0.05 ms
SKU: 6ES7421-7BH01-0AB0
Out of stock
Availability: Out of Stock
Marketplace sellers
Submit a quote request to receive offers from sellers of this product.
Short Description
Description:
SIMATIC S7-400, digital input SM 421, isolated 16 DI, 24 V DC, input delay alarm with 0.05 ms, diagnostics.
Supply voltage:
Load voltage L+:
Rated value (DC): 24 V.
Permissible range, lower limit (DC): 20.4 V.
Permissible range, upper limit (DC): 28.8 V.
Reverse polarity protection: Yes.
Input current:
From supply voltage L+, max.: 120 mA
From backplane bus 5 V DC, max.: 130 mA.
Encoder supply:
Number of outputs: 2.
Type of output voltage: L+ (-2.5 V).
Short-circuit protection: Yes; Electronic.
Additional (redundant) feed: Yes; possible.
Output current:
Rated value: 120 mA.
Permissible range, lower limit: 0 mA.
Permissible range, upper limit: 150 mA.
Power loss:
Power loss, typ.: 5 W.
Digital inputs:
Number of digital inputs: 16.
Input characteristic according to IEC 61131: Type 2.
Number of simultaneously controllable inputs:
Number of simultaneously controllable inputs: 16.
Input voltage:
Type of input voltage: DC.
Rated value (DC): 24 V.
for signal "0": -30 V DC to +5 V DC.
for signal "1": 11 V DC to 30 V DC.
Input current:
for signal "0", min.: 6 mA; < 6 mA.
for signal "1", typ.: 6 mA; 6 to 8 mA.
Input delay (for rated value of input voltage):
for standard inputs:
Parameterizable: Yes.
At "0" to "1", min.: 3 µs; 0.05 / 0.1 / 0.5 / 3 ms.
Encoder connection:
Fixed current limitation for wire-break monitoring, min.: 10 kΩ.
Fixed current limitation for wire-break monitoring, max.: 18 kΩ.
Cable length:
shielded, max.: 1 000 m; 1 000 m: 3 ms, 70 m: 0.5 ms, 30 m: 0.1 ms, 30 m: 0.05 ms.
unshielded, max.: 600 m; 600 m: 3 ms; 50 m: 0,5 ms; 20 m: 0,1 ms; 20 m: 0,05 ms.
Buy currently uses Select Automation shop pricing and checkout.
Encoder:
Connectable encoders:
2-wire sensor: Yes.
Permissible quiescent current (2-wire sensor), max.: 3 mA.
Interrupts/diagnostics/status information:
Diagnostics function: Yes; Parameterizable.
Alarms:
Diagnostic alarm: Yes; Parameterizable.
Hardware interrupt: Yes; Parameterizable.
Diagnoses:
Diagnostic information readable: Yes.
Monitoring the supply voltage: Yes.
Wire-break: Yes; I < 1 mA.
Diagnostics indication LED:
Rated load voltage PWR (green): Yes; Per group.
internal fault INTF (red): Yes.
external fault EXTF (red): Yes.
Status indicator digital input (green): Yes.
Channel fault indicator F (red): No.
Potential separation:
Potential separation digital inputs:
Between the channels: Yes.
Between the channels, in groups of: 8.
Between the channels and backplane bus: Yes.
Isolation:
Isolation tested with: 500 V DC.
Dimensions:
Width: 25 mm.
Height: 290 mm.
Depth: 210 mm.
Weights:
Weight, approx.: 600 g.