Part number
6ES7223-1PL32-0XB0
Model no
SM 1223, DI 16x24 V DC, DQ 16x relay
$382.95 In stock · 50+ Dispatch Planned dispatch date. We aim to ship within 1 business day. Depending on warehouse workload it can take 2–3 business days. · From Türkiye
SIMATIC S7-1200

Siemens 6ES7223-1PL32-0XB0 SIMATIC S7-1200 SM 1223 16DI/16DO Relay 2A Digital I/O Module

SIMATIC S7-1200 SM 1223 digital I/O module: 16 DI 24V DC, 16 DO relay 2A, IP20.

Rated current
2 A
Rated operational voltage
24 V AC
EAN
6940408102019
Description

About the SM 1223, DI 16x24 V DC, DQ 16x relay

The Siemens 6ES7223-1PL32-0XB0 is a SIMATIC S7-1200 SM 1223 digital I/O module with 16 digital inputs, 24 V DC sink/source, and 16 relay outputs rated 2 A each. It mounts on the S7-1200 backplane bus, doubling the point count of the 8-channel SM 1223 variant in the same product family. The relay outputs switch AC loads up to 250 V or DC loads up to 30 V.

Certifications & Standards

  • CE
  • CSA
  • UL
  • cULus
  • FM
  • RCM
  • KC
  • Marine approval

Selection Notes

This 16DI/16DO relay variant doubles the channel count of the 8-channel SM 1223 in the same family while keeping the module width to 70 mm, reducing backplane space per I/O point versus running two 8-channel modules. Full 16-output operation is thermally limited: all 16 relay outputs can be active simultaneously up to 55 degrees C horizontal or 45 degrees C vertical mounting, dropping to 8 simultaneously active, non-adjacent, outputs at the 60 degrees C horizontal / 50 degrees C vertical maximum. Choose a transistor-output DQ variant instead when switching speed exceeds the relay's 100,000-cycle rated-load life.

Applications

Typical uses include expanding S7-1200 digital I/O on machine control panels with higher point counts, driving 24 V DC or up to 250 V AC field devices such as indicator lamps, small motor starters, and solenoid valves directly from the relay outputs, and reading 24 V DC sensor and pushbutton inputs in groups of two.

Specification

Full specification

96 values · Last verified 01 Nov 2026

General information 1

Product type designation SM 1223, DI 16x24 V DC, DQ 16x relay

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 2

from backplane bus 5 V DC, max. 180 mA
Digital inputs: from load voltage L+ (without load), max. 4 mA/input 11 mA/relay
Show all 96 specifications ↓ Show less ↑90 more values in Identification, Output voltage, Power loss, Digital inputs, Digital outputs, Interrupts/diagnostics/status information, Potential separation, Permissible potential difference, Degree and class of protection, Standards, approvals, certificates, Ambient conditions, Connection method, Mechanics/material, Dimensions, Weights, Logistics.

Identification 10

Part number 6ES7223-1PL32-0XB0
Type designation SM 1223, DI 16x24 V DC, DQ 16x relay
Brand Siemens
Condition New, factory sealed
Source Siemens and its authorised distributors
Warranty Manufacturer warranty
Lifecycle status Active, in production
EAN 6940408102019
ETIM class EC001419
eCl@ss 27242204

Output voltage 1

Power supply to the transmitters: present Yes

Power loss 1

Power loss, typ. 10 W

Digital inputs 13

Number of digital inputs 16
in groups of 2
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 16
Input voltage: Rated value (DC) 24 V
Input voltage: for signal "0" 5 V DC at 1 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 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 20

Number of digital outputs 16
in groups of 4
Short-circuit protection No; to be provided externally
Switching capacity of the outputs: with resistive load, max. 2 A
Switching capacity of the outputs: on lamp load, max. 30 W with DC, 200 W with AC
Output voltage: Rated value (DC) 5 V DC to 30 V DC
Output voltage: Rated value (AC) 5 V AC to 250 V AC
Output current: for signal "1" rated value 2 A
Output current: for signal "1" permissible range, max. 2 A
Output delay with resistive load: "0" to "1", max. 10 ms
Output delay with resistive load: "1" to "0", max. 10 ms
Total current of the outputs (per group) horizontal installation: up to 50 °C, max. 8 A; Current per mass
Relay outputs: Number of relay outputs 16
Relay outputs: Rated supply voltage of relay coil L+ (DC) 24 V
Relay outputs: Number of operating cycles, max. Switching capacity of contacts mechanically 10 million, at rated load voltage 100 000
Relay outputs: with inductive load, max. 2 A
Relay outputs: on lamp load, max. 30 W with DC, 200 W with AC
Relay outputs: with resistive load, max. 2 A
Cable length: shielded, max. 500 m
Cable length: unshielded, max. 150 m

Interrupts/diagnostics/status information 3

Alarms: Diagnostic alarm 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 2
Potential separation digital outputs: between the channels Relays
Potential separation digital outputs: between the channels, in groups of 4
Potential separation digital outputs: between the channels and backplane bus 1 500 V AC for 1 minute

Permissible potential difference 1

between different circuits 750 V AC for 1 minute

Degree and class of protection 1

IP degree of protection IP20

Standards, approvals, certificates 13

CE mark Yes
CSA approval Yes
UL approval Yes
cULus Yes
FM approval Yes
RCM (formerly C-TICK) Yes
KC approval Yes
Marine approval Yes
Ecological footprint: environmental product declaration Global warming potential Yes
Ecological footprint: global warming potential, (total) [CO2 eq] 123 kg
Ecological footprint: global warming potential, (during production) [CO2 eq] 12.1 kg
Ecological footprint: global warming potential, (during operation) [CO2 eq] 111 kg
Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] -0.434 kg

Ambient conditions 11

Free fall: Fall height, max. 0.3 m; five times, in product package
Ambient temperature during operation: min. -20 °C
Ambient temperature during operation: max. 60 °C; Number of simultaneously activated outputs: 8 (no adjacent points) at 60 °C horizontal or 50 °C vertical, 16 at 55 °C horizontal or 45 °C vertical
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: Storage/transport, min. 660 hPa
Air pressure acc. to IEC 60068-2-13: Storage/transport, max. 1 080 hPa
Relative humidity: Operation at 25 ℃ without condensation, max. 95 %

Connection method 1

required front connector Yes

Mechanics/material 1

Enclosure material (front): Plastic Yes

Dimensions 3

Width 70 mm
Height 100 mm
Depth 75 mm

Weights 1

Weight, approx. 350 g

Logistics 6

Net weight 0.319 kg
Country of origin DE
Shipping weight 0.819 kg
Ships from Türkiye
Dispatch 12 Nov
Stock In stock

Source: manufacturer data · Last verified: 01 Nov 2026

Documents

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Certifications

Certifications and standards

  • CE
  • UL
  • CE mark
  • CSA approval
  • UL approval
  • cULus
  • FM approval
  • RCM (formerly C-TICK)
  • KC approval
  • Marine approval
Quick answers

Questions about the SM 1223, DI 16x24 V DC, DQ 16x relay

What is the rated current of SM 1223, DI 16x24 V DC, DQ 16x relay?

The rated current of SM 1223, DI 16x24 V DC, DQ 16x relay is 2 A.

Which supply voltage is SM 1223, DI 16x24 V DC, DQ 16x relay rated for?

The rated operational voltage of SM 1223, DI 16x24 V DC, DQ 16x relay is 24 V AC.

What is the HS code of SM 1223, DI 16x24 V DC, DQ 16x relay for customs?

The tariff (HS) code on file for SM 1223, DI 16x24 V DC, DQ 16x relay is 85389091.

What is the EAN of SM 1223, DI 16x24 V DC, DQ 16x relay?

The EAN (GTIN) of SM 1223, DI 16x24 V DC, DQ 16x relay is 6940408102019.

Where does SM 1223, DI 16x24 V DC, DQ 16x relay ship from, and how fast?

SM 1223, DI 16x24 V DC, DQ 16x relay ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.

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Series

Siemens SIMATIC S7-1200

Brand
Siemens
Series
SIMATIC S7-1200
$382.95 In stock · 12 Nov
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SM 1223, DI 16x24 V DC, DQ 16x relay

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Siemens · 6ES7223-1PL32-0XB0

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