Programmable Logic Controller Guide: Selection, Application, and Maintenance for Engineers
PLC selection guide for engineers covering IEC 61131 compliance, Siemens, Rockwell, Schneider, ABB comparison, scan time sizing, and wiring. Shop at Stoklink.
- Part number
- 6ES7223-5BH50-0XB0
- Model no
- SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A
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SIMATIC S7-1200Siemens 6ES7223-5BH50-0XB0 SIMATIC S7-1200 SM 1223 8DI/8DO Digital I/O Module
SIMATIC S7-1200 SM 1223 digital I/O module, 8 DI 24V DC in, 8 DO 24V DC 0.5A sourcing outputs.
Description
About the SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A
About the SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A
The Siemens 6ES7223-5BH50-0XB0 is a SIMATIC S7-1200 SM 1223 digital I/O module with 8 sink/source 24 V DC inputs and 8 transistor-sourcing 24 V DC outputs rated 0.5 A each. Inputs meet the IEC 61131 type 1 characteristic curve in groups of four, and outputs switch resistive loads up to 0.5 A or lamp loads up to 5 W, with short-circuit protection to be provided externally.
Certifications & Standards
- CE mark
- UL approval
- cULus
- RCM
- KC approval
Selection Notes
The SM 1223 8DI/8DO pairs sink/source-capable 24 V DC inputs with sourcing-only transistor outputs, so it suits stations that mix sensors wired either way on the input side while keeping outputs limited to 0.5 A loads such as small solenoids and indicator lamps. Because the outputs carry no internal short-circuit protection, external fusing is needed when driving loads with high inrush or stall current. The 707 V DC potential separation between channel groups and the backplane bus allows it to sit next to analog or higher-voltage modules on the same DIN rail without added isolation hardware.
Applications
Conveyor sensor and pneumatic solenoid interfacing, packaging line limit switches and indicator lamps, or general digital I/O expansion for S7-1200 stations that have outgrown the CPU's onboard 8 DI/6 DO count.
Specification
Full specification
General information 1
| Product type designation | SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A |
|---|
Supply voltage 3
| Rated value (DC) | 24 V |
|---|---|
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
Input current 3
| from backplane bus 5 V DC, max. | 110 mA |
|---|---|
| Digital inputs: from load voltage L+ (without load), max. | 4.1 mA; per channel |
| Digital outputs: from load voltage L+, max. | 45 mA |
Show all 107 specifications ↓ Show less ↑100 more values in Identification, Power loss, Digital inputs, Digital outputs, Interrupts/diagnostics/status information, Potential separation, Isolation, Degree and class of protection, Standards, approvals, certificates, Ambient conditions, Connection method, Mechanics/material, Dimensions, Weights, Version Classification, Approvals / Certificates, Logistics.
Identification 10
| Part number | 6ES7223-5BH50-0XB0 |
|---|---|
| Type designation | SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4047623417293 |
| ETIM class | EC001419 |
| eCl@ss | 27242204 |
Power loss 1
| Power loss, typ. | 4 W |
|---|
Digital inputs 13
| Number of digital inputs | 8 |
|---|---|
| in groups of | 4 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Number of simultaneously controllable inputs all mounting positions: up to 40 °C, max. horizontal installation | 8 |
| Input voltage: Rated value (DC) | 24 V |
| Input voltage: for signal "0" | 5 V DC or 0.5 mA |
| Input voltage: for signal "1" | 15 V DC at 2.5 mA |
| Input current: for signal "0", max. (permissible quiescent current) | 1 mA |
| Input current: for signal "1", min. | 2.5 mA |
| Input current: for signal "1", typ. | 4.1 mA |
| Input delay (for rated value of input voltage) for standard inputs: parameterizable for interrupt inputs | Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four |
| Cable length: shielded, max. | 500 m |
| Cable length: unshielded, max. | 300 m |
Digital outputs 17
| Number of digital outputs | 8 |
|---|---|
| in groups of | 8 |
| Short-circuit protection | No; to be provided externally |
| Limitation of inductive shutdown voltage to Switching capacity of the outputs | typ. (L+) -40 V, 1 W dissipation |
| with resistive load, max. | 0.5 A |
| on lamp load, max. | 5 W |
| Output voltage: Rated value (DC) | 24 V |
| Output voltage: for signal "0", max. | 0.1 V; with 10 kOhm load |
| Output voltage: for signal "1", min. | 20 V DC |
| Output current: for signal "1" rated value | 0.5 A |
| Output current: for signal "1" permissible range, max. | 0.5 A |
| Output current: for signal "0" residual current, max. | 10 µA |
| Output delay with resistive load: "0" to "1", max. | 50 µs |
| Output delay with resistive load: "1" to "0", max. | 200 µs |
| Total current of the outputs (per group) horizontal installation: up to 50 °C, max. | 2 A; Current per mass |
| Cable length: shielded, max. | 500 m |
| Cable length: unshielded, max. | 150 m |
Interrupts/diagnostics/status information 6
| Diagnostics function | Yes |
|---|---|
| Alarms: Diagnostic alarm | Yes |
| Diagnoses: Monitoring the supply voltage | Yes |
| Diagnostics indication LED: DIAG LED | Yes |
| Diagnostics indication LED: for status of the inputs | Yes |
| Diagnostics indication LED: for status of the outputs | Yes |
Potential separation 4
| Potential separation digital inputs: between the channels, in groups of | 4 |
|---|---|
| Potential separation digital inputs: between the channels and backplane bus | Yes; 707 V DC (type test) |
| Potential separation digital outputs: between the channels, in groups of | 8 |
| Potential separation digital outputs: between the channels and backplane bus | Yes; 707 V DC (type test) |
Isolation 1
| Isolation tested with | 707 V DC (type test) |
|---|
Degree and class of protection 1
| IP degree of protection | IP20 |
|---|
Standards, approvals, certificates 14
| Siemens Eco Profile (SEP) | Siemens EcoTech |
|---|---|
| CE mark | Yes |
| CSA approval | No |
| UL approval | Yes |
| cULus | Yes |
| FM approval | No |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| Marine approval | No |
| Ecological footprint: environmental product declaration Global warming potential | Yes; type 2 acc. to ISO 14021 |
| Ecological footprint: global warming potential, (total) [CO2 eq] | 40.3 kg |
| Ecological footprint: global warming potential, (during production) [CO2 eq] | 7.79 kg |
| Ecological footprint: global warming potential, (during operation) [CO2 eq] | 32.5 kg |
| Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] | -0.089 kg |
Ambient conditions 16
| Free fall: Fall height, max. | 0.3 m; five times, in product package |
|---|---|
| Ambient temperature during operation: horizontal installation, min. | -20 °C |
| Ambient temperature during operation: vertical installation, min. | -20 °C |
| Ambient temperature during operation: permissible temperature change | 5°C to 55°C, 3°C / minute |
| Ambient temperature during storage/transportation: min. | -40 °C |
| Ambient temperature during storage/transportation: max. | 70 °C |
| Air pressure acc. to IEC 60068-2-13: Operation, min. | 540 hPa |
| Air pressure acc. to IEC 60068-2-13: Operation, max. | 1 140 hPa |
| Air pressure acc. to IEC 60068-2-13: Storage/transport, min. | 540 hPa |
| Air pressure acc. to IEC 60068-2-13: Storage/transport, max. | 1 140 hPa |
| Altitude during operation relating to sea level: Installation altitude, min. | -1 000 m |
| Relative humidity: Operation at 25 ℃ without condensation, max. | 95 % |
| Vibrations: Vibration resistance during operation acc. to IEC 60068-2-6 | 3.5 mm from 5 - 8.4 Hz, 1g from 8.4 - 150 Hz |
| Vibrations: Operation, tested according to IEC 60068-2-6 | Yes |
| Shock testing: tested according to IEC 60068-2-27 | Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms |
| Pollutant concentrations: SO2 at RH < 60% without condensation | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free |
Connection method 1
| required front connector | No |
|---|
Mechanics/material 1
| Enclosure material (front): Plastic | Yes |
|---|
Dimensions 3
| Width | 30 mm |
|---|---|
| Height | 125 mm |
| Depth | 100 mm |
Weights 1
| Weight, approx. | 170 g |
|---|
Version Classification 2
| eClass | 16 27-24-22-04 |
|---|---|
| ETIM | 10 EC001419 |
Approvals / Certificates 2
| General Product Approval Miscellaneous | For use in hazard- |
|---|---|
| General Product Approval EMV | ous locations |
Logistics 7
| Net weight | 0.17 kg |
|---|---|
| Package dimensions | 150 × 47 × 110 mm |
| Country of origin | CN |
| Shipping weight | 0.67 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
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Ask us for the datasheet
Certifications
Certifications and standards
- CE
- UL
- CE mark
- UL approval
- cULus
- RCM (formerly C-TICK)
- KC approval
Quick answers
Questions about the SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A
What is the rated current of SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A?
The rated current of SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A is 0.5 A.
Which supply voltage is SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A rated for?
The rated operational voltage of SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A is 24 V AC.
What is the HS code of SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A for customs?
The tariff (HS) code on file for SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A is 85389091.
What is the EAN of SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A?
The EAN (GTIN) of SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A is 4047623417293.
Where does SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A ship from, and how fast?
SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
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What Is a Programmable Logic Controller and How Does It Work
Learn how a PLC works, including scan cycle, I/O sizing, IEC 61131-3 programming, and hardware selection for ABB, Schneider, and Siemens. Shop at Stoklink.
Main Components of a PLC System: Complete Guide for Engineers
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Series
Siemens SIMATIC S7-1200
- Brand
- Siemens
- Series
- SIMATIC S7-1200
