Siemens SIMATIC S7-400 6ES7422-1BL00-0AA0 SM 422 32 DO 24 V DC 0.5 A

Overview

SIEMENS SIMATIC S7-400 • DIGITAL OUTPUT

6ES7422-1BL00-0AA0 SIMATIC S7-400 SM 422 32-Channel Digital Output

An isolated 32-point 24 V DC output module for S7-400 actuator control.

At a Glance

Brand	Siemens
Model	6ES7422-1BL00-0AA0
Product Type	Digital output module
Core Function	32-channel 24 V DC load switching
Compatible Series	SIMATIC S7-400

32 Outputs

Drives thirty-two 24 V DC field loads.

0.5 A Per Channel

Rated output current is 0.5 A per point.

Protected Switching

Electronic short-circuit protection is built into the output circuit.

Product Overview

6ES7422-1BL00-0AA0 is the SM 422 digital output module for SIMATIC S7-400. It provides thirty-two isolated 24 V DC outputs rated at 0.5 A per channel.

The load supply is 24 V DC nominal, and the output channels provide electronic short-circuit protection. For larger or redundant load control, only outputs in the same group may be paralleled as stated by Siemens.

Ordering focus: confirm the S7-400 rack, 24 V load supply, channel current and output grouping.

Key Functions

Actuator Control

Switches thirty-two 24 V DC field loads under PLC control.

Short-Circuit Response

Electronic protection responds to short circuits at the outputs.

Grouped Output Options

Outputs within the same group can be paralleled under the stated Siemens conditions.

Official Specifications

Digital Output Count	32
Rated Load Voltage	24 V DC
Permissible Load Voltage	20.4–28.8 V DC
Rated Output Current per Channel	0.5 A
Permissible Output Current	5 mA–0.6 A
Maximum No-Load Current from L+	30 mA
Maximum 5 V Backplane Current	200 mA
Typical Module Power Loss	4 W
Typical Short-Circuit Threshold	0.7–1.5 A
Maximum Lamp Load	5 W
Load Resistance Range	48 Ω–4 kΩ
Maximum Signal-0 Residual Current	0.3 mA
Maximum Turn-On Delay, Resistive Load	1 ms
Maximum Turn-Off Delay, Resistive Load	1 ms
Maximum Resistive-Load Switching Frequency	100 Hz
Maximum Lamp-Load Switching Frequency	10 Hz

Official source:Siemens 6ES7422-1BL00-0AA0 data sheet.

Frequently Asked Questions

How many outputs does 6ES7422-1BL00-0AA0 provide?

It provides thirty-two digital output channels.

What load supply does 6ES7422-1BL00-0AA0 require?

Use a 24 V DC nominal load supply within the 20.4 to 28.8 V range.

What current can each output of 6ES7422-1BL00-0AA0 switch?

Each channel has a rated output current of 0.5 A.

Are the outputs of 6ES7422-1BL00-0AA0 short-circuit protected?

The output circuits have electronic short-circuit protection.

Can two outputs of 6ES7422-1BL00-0AA0 be paralleled?

Siemens permits paralleling only outputs that belong to the same group.

How quickly does 6ES7422-1BL00-0AA0 switch a resistive load?

The maximum stated turn-on and turn-off delay is 1 ms.

What lamp load can 6ES7422-1BL00-0AA0 drive?

The maximum specified lamp load is 5 W.

Compatibility & Ordering Notes

Before ordering 6ES7422-1BL00-0AA0: check load supply, per-channel current, lamp loading and the rack power budget.

S7-400 output checklist

• Keep the load voltage inside the 20.4–28.8 V DC range.
• Budget up to 0.5 A per output for normal rated operation.
• Parallel only outputs in the same group when the application requires it.

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