How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
- Part number
- 6GK7242-5DX30-0XE0
- Model no
- CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module.
Low stock
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
0
Siemens has announced the end of 6GK7242-5DX30-0XE0
Once production ends, supply depends on remaining stock.
No replacement announced yet. Tell us the application and we will propose an alternative.
SIMATIC S7-1200Siemens 6GK7242-5DX30-0XE0 SIMATIC S7-1200 CM 1242-5 PROFIBUS DP Communication Module
Siemens CM 1242-5, connects SIMATIC S7-1200 to PROFIBUS as a DP slave, 9.6kbit/s-12Mbit/s.
Description
About the CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module.
About the CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module.
The Siemens 6GK7242-5DX30-0XE0 CM 1242-5 is a communication module that connects a SIMATIC S7-1200 CPU to PROFIBUS as a DP slave device, supporting DPV0 and DPV1 services at transfer rates from 9.6 kbit/s to 12 Mbit/s. It mounts as a compact single-width module on the CPU's left side, drawing 0.15 A from the 5 V backplane bus.
Certifications & Standards
- CE
- UKCA
- KC
- RCM
- RoHS
- EAC
- ATEX
- IECEx
- CCC
- FM
Selection Notes
Choose the CM 1242-5 when an S7-1200 station needs to act as a PROFIBUS DP slave rather than a master — its RS485 interface covers the full 9.6 kbit/s to 12 Mbit/s DP range, so it can join networks alongside faster masters. Up to three units can be installed per CPU, useful when one station has to expose more than one DP slave address. Configuration requires STEP 7 Basic or Professional, and its 0.75 W power loss and 0.15 A backplane draw should be included when sizing the S7-1200 power budget on larger I/O configurations.
Applications
Fits SIMATIC S7-1200-based machine or process stations that report into a higher-level PROFIBUS DP master — common where an S7-1200 controller sits nested under an S7-400 or third-party DP master in a mixed-generation plant network.
Specification
Full specification
General 2
| product type designation | CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. |
|---|---|
| product brand name | SIMATIC NET |
Transfer rate 1
| transfer rate: at the 1st interface / according to PROFIBUS | 9.6 kbit/s ... 12 Mbit/s |
|---|
Interfaces 4
| number of interfaces / according to Industrial Ethernet | 0 |
|---|---|
| number of electrical connections: at the 1st interface / according to PROFIBUS | 1 |
| number of electrical connections: for power supply | 0 |
| type of electrical connection: at the 1st interface / according to PROFIBUS | 9-pin Sub-D socket (RS485) |
Show all 70 specifications ↓ Show less ↑63 more values in Identification, Supply voltage, current consumption, power loss, Ambient conditions, Design, dimensions and weights, Product features, product functions, product components / general, Performance data / PROFIBUS DP, Performance data / telecontrol, Product functions / management, configuration, engineering, Standards, specifications, approvals, Standards, specifications, approvals / hazardous environments / header, Standards, specifications, approvals / marine classification / header, Europe Ltd. (ABS), (LRS), Standards, specifications, approvals / Environmental Product Declaration, Logistics.
Identification 10
| Part number | 6GK7242-5DX30-0XE0 |
|---|---|
| Type designation | CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4019169211222 |
| ETIM class | EC001423 |
| eCl@ss | 27242208 |
Supply voltage, current consumption, power loss 4
| type of voltage / of the supply voltage | DC |
|---|---|
| supply voltage / 1 / from backplane bus | 5 V |
| consumed current: from backplane bus / at DC / at 5 V / typical | 0.15 A |
| power loss [W] | 0.75 W |
Ambient conditions 6
| ambient temperature: for vertical installation / during operation | 0 ... 45 °C |
|---|---|
| ambient temperature: for horizontally arranged busbars / during operation | 0 ... 55 °C |
| ambient temperature: during storage | -40 ... +70 °C |
| ambient temperature: during transport | -40 ... +70 °C |
| relative humidity: at 25 °C / without condensation / during operation / maximum | 95 % |
| protection class IP | IP20 |
Design, dimensions and weights 7
| module format | Compact module S7-1200 single width |
|---|---|
| width | 30 mm |
| height | 100 mm |
| depth | 75 mm |
| fastening method: 35 mm DIN-rail mounting | Yes |
| fastening method: S7-300 rail mounting | No |
| fastening method: wall mounting | Yes |
Product features, product functions, product components / general 1
| number of units: per CPU / maximum | 3 |
|---|
Performance data / PROFIBUS DP 4
| service / as DP device: DPV0 | Yes |
|---|---|
| service / as DP device: DPV1 | Yes |
| data volume: of the address range of the inputs / as DP device / total | 240 byte |
| data volume: of the address range of the outputs / as DP device / total | 240 byte |
Performance data / telecontrol 1
| protocol / is supported: TCP/IP | No |
|---|
Product functions / management, configuration, engineering 2
| configuration software: required | STEP 7 Basic/Professional |
|---|---|
| product function / is supported / identification link | Yes; acc. to IEC 61406-1:2022 |
Standards, specifications, approvals 6
| certificate of suitability / CE marking | Yes |
|---|---|
| certificate of suitability / UKCA marking | Yes |
| certificate of suitability / KC approval | Yes |
| certificate of suitability / Regulatory Compliance Mark (RCM) | Yes |
| certificate of suitability / RoHS conformity | Yes |
| certificate of suitability / EAC approval | Yes |
Standards, specifications, approvals / hazardous environments / header 4
| certificate of suitability / ATEX | Yes |
|---|---|
| certificate of suitability / IECEx | Yes |
| certificate of suitability / CCC / for hazardous zone according to GB standard | Yes |
| certificate of suitability / FM registration | Yes |
Standards, specifications, approvals / marine classification / header 1
| Marine classification association / American Bureau of Shipping | Yes |
|---|
Europe Ltd. (ABS) 3
| Marine classification association / French marine classification society (BV) | Yes |
|---|---|
| Marine classification association / Det Norske Veritas (DNV) | Yes |
| Marine classification association / Lloyds Register of Shipping | Yes |
(LRS) 2
| Marine classification association / Nippon Kaiji Kyokai (NK) | Yes |
|---|---|
| Marine classification association / Royal Institution of Naval | Yes |
Standards, specifications, approvals / Environmental Product Declaration 5
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 89.58 kg |
| global warming potential [CO2 eq]: during manufacturing | 14.29 kg |
| global warming potential [CO2 eq]: during operation | 75.11 kg |
| global warming potential [CO2 eq]: after end of life | 0.18 kg |
Logistics 7
| Net weight | 0.172 kg |
|---|---|
| Package dimensions | 120 × 40 × 125 mm |
| Country of origin | DE |
| Shipping weight | 0.672 kg |
| Ships from | Türkiye |
| Dispatch | 11 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6GK7242-5DX30-0XE0
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- / CE marking
- / UKCA marking
- / KC approval
- / Regulatory Compliance Mark (RCM)
- / RoHS conformity
- / EAC approval
- / ATEX
- / IECEx
- / CCC / for hazardous zone according to GB standard
- / FM registration
Quick answers
Questions about the CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module.
What is the HS code of CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. for customs?
The tariff (HS) code on file for CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. is 85176200.
What is the EAN of CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module.?
The EAN (GTIN) of CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. is 4019169211222.
Where does CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. ship from, and how fast?
CM 1242-5 communications module CM 1242-5; for connection of SIMATIC S7-1200 to PROFIBUS as DP slave module. ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
Guides for PLC & controllers
Main Types of Programmable Logic Controllers: A Complete PLC Guide
Compare the 5 main PLC types, IEC 61131-3 languages, scan-time sizing, and brand options to choose the right controller for your plant. Shop at...
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.
Reviews
Customer reviews
Series
Siemens SIMATIC S7-1200
- Brand
- Siemens
- Series
- SIMATIC S7-1200
