Simatic S7 300 SM 322 PLC

SIMATIC S7-300, Digital output SM 322 High Speed, isolated, 16 DO, 24 V DC, 0.5A, 1x 20-pole
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Product Details

Product Description


SIMATIC S7-300, Digital output SM 322 High Speed, isolated, 16 DO, 24 V DC, 0.5A, 1x 20-pole

Brand Name


Model Number


Net Weight (kg)

0,246 Kg

Place of Origin


Lead Time

In Stock

Packaging Dimension

13,20 x 15,20 x 5,10

Delivery Time

2-3 days


SM 322 digital output modules

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

Input current

from load voltage L+ (without load), max. 110 mA

from backplane bus 5 V DC, max. 70 mA

Power loss

Power loss, typ. 5 W

Digital outputs

Number of digital outputs :16

Limitation of inductive shutdown voltage to L+ (-53 V)

Switching capacity of the outputs

● on lamp load, max.: 5 W

Load resistance range

● lower limit : 48 Ω

● upper limit :4 kΩ

Output voltage

● for signal "1", min. L+ (-0.8 V)

Output current

● for signal "1" rated value :0.5 A

● for signal "1" minimum load current :5 mA

● for signal "0" residual current, max. :0.5 mA

Switching frequency

● with resistive load, max. 1 000 Hz

● with inductive load, max. 0.5 Hz

● on lamp load, max. 10 Hz

Total current of the outputs (per group)

horizontal installation

— up to 40 °C, max. 4 A

— up to 60 °C, max. 3 A

vertical installation

— up to 40 °C, max. 2 A

Cable length

● shielded, max. 1 000 m

● unshielded, max. 600 m

Interrupts/diagnostics/status information

Diagnostics function :No


● Diagnostic alarm: No

Diagnostic messages

● Wire-break: No

● Short-circuit: No

● Fuse blown: No

● missing load voltage :No

Diagnostics indication LED

● Rated load voltage PWR (green) : No

● Fuse OK FSG (green) :No

● Status indicator digital output (green) Yes; per channel

Potential separation

Potential separation digital outputs

● between the channels Yes

● between the channels, in groups of 8

● between the channels and backplane bus Yes; Optocoupler


Isolation tested with 500 V DC

Connection method

required front connector 20-pin


Width  :40 mm

Height :125 mm

Depth :120 mm


Weight, approx. :200 g

Our Main Market:

Siemens energy related products: natural gas, steam turbine; generator; compressor; onshore, offshore wind power; high voltage power conversion; transformer; high voltage electric inverter and system; DC and AC transmission system; Components and systems; energy automation.


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