Siemens 6GK7343-1EX30-0XE0
CP 343-1 communications processor, Industrial Ethernet, PROFINET IO controller
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- Manufacturer
- Siemens
- Manufacturer part number
- 6GK7343-1EX30-0XE0
- Product family
- SIMATIC S7-300 PLC Modules
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | Communications processor |
| Manufacturer lifecycle | Discontinued |
| transfer rate / at the 1st interface | 10 ... 100 Mbit/s |
| number of interfaces / according to Industrial Ethernet | 2 |
| number of electrical connections / at the 1st interface / according to Industrial Ethernet | 2 |
| number of electrical connections / for power supply | 1 |
| type of electrical connection / of Industrial Ethernet interface | RJ45 port |
| type of electrical connection / at the 1st interface / according to Industrial Ethernet | RJ45 port |
| type of electrical connection / for power supply | 2-pole plugable terminal block |
| type of voltage / of the supply voltage | DC |
| supply voltage / 1 / from backplane bus | 5 V |
| supply voltage | 24 V |
| supply voltage / external | 24 V |
| supply voltage / external / at DC / rated value | 24 V |
| supply voltage, current consumption, power loss / relative positive tolerance / at DC / at 24 V | 20 % |
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| supply voltage, current consumption, power loss / relative negative tolerance / at DC / at 24 V | 15 % |
|---|---|
| consumed current / from backplane bus / at DC / at 5 V / typical | 0.2 A |
| consumed current / from external supply voltage / at DC / at 24 V / typical | 0.16 A |
| consumed current / from external supply voltage / at DC / at 24 V / maximum | 0.2 A |
| supply voltage, current consumption, power loss / power loss [W] | 5.8 W |
| ambient temperature / for vertical installation / during operation | 0 ... 40 °C |
| ambient temperature / for horizontally arranged busbars / during operation | 0 ... 60 °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 % |
| ambient conditions / protection class IP | IP20 |
| module format | Compact module S7-300 single width |
| width | 40 mm |
| height | 125 mm |
| depth | 120 mm |
| net weight | 0.22 kg |
| fastening method / S7-300 rail mounting | Yes |
| performance data / open communication / number of possible connections / for open communication / by means of SEND/RECEIVE blocks / maximum | 16 |
| data volume / as user data per ISO connection / for open communication / by means of SEND/RECEIVE blocks / maximum | 8 Kibyte |
| data volume / as user data per ISO on TCP connection / for open communication / by means of SEND/RECEIVE blocks / maximum | 8 Kibyte |
| data volume / as user data per TCP connection / for open communication / by means of SEND/RECEIVE blocks / maximum | 8 Kibyte |
| data volume / as user data per UDP connection / for open IE communication / by means of SEND/RECEIVE blocks / maximum | 2 Kibyte |
| performance data / open communication / number of Multicast stations | 16 |
| number of possible connections / for S7 communication / maximum | 16 |
| performance data / multi-protocol mode / number of active connections / with multi-protocol mode | 32 |
| performance data / PROFINET communication / as PN IO controller / number of PN IO devices / on PROFINET IO controller / operable / total | 32 |
| performance data / PROFINET communication / as PN IO controller / number of external PN IO lines / with PROFINET / per rack | 1 |
| data volume / as user data for input variables / as PROFINET IO controller / maximum | 1 Kibyte |
| data volume / as user data for output variables / as PROFINET IO controller / maximum | 1 Kibyte |
| data volume / as user data for input variables per PN IO device / as PROFINET IO controller / maximum | 1433 byte |
| data volume / as user data for output variables per PN IO device / as PROFINET IO controller / maximum | 1433 byte |
| data volume / as user data for input variables per PN IO device / for each sub-module as PROFINET IO controller / maximum | 240 byte |
| data volume / as user data for output variables per PN IO device / for each sub-module as PROFINET IO controller / maximum | 240 byte |
| performance data / PROFINET communication / as PN IO device / product function / PROFINET IO device | Yes |
| data volume / as user data for input variables / as PROFINET IO device / maximum | 512 byte |
| data volume / as user data for output variables / as PROFINET IO device / maximum | 512 byte |
| data volume / as user data for input variables / for each sub-module as PROFINET IO device | 240 byte |
| data volume / as user data for output variables / for each sub-module as PROFINET IO device | 240 byte |
| data volume / as user data for the consistency area for each sub- module | 240 byte |
| performance data / PROFINET communication / as PN IO device / number of submodules / per PROFINET IO-Device | 32 |
| protocol / is supported / TCP/IP | Yes |
| product function / MIB support | Yes |
| protocol / is supported / SNMP v1 | Yes |
| protocol / is supported / DCP | Yes |
| protocol / is supported / LLDP | Yes |
| configuration software / required | STEP 7 V5.4 SP2 or higher / STEP 7 Professional V11 (TIA Portal) or higher |
| identification & maintenance function / I&M0 - device-specific information | Yes |
| identification & maintenance function / I&M1 - higher level designation/location designation | Yes |
| product function / is supported / identification link | Yes; acc. to IEC 61406-1:2022 |
| product function / web-based diagnostics | Yes |
| product feature / switch | Yes |
| product function / switch-managed | No |
| product function / with IRT / PROFINET IO switch | Yes |
| product function / configuration with STEP 7 | Yes |
| product function / ring redundancy | Yes |
| product function / redundancy manager | No |
| product functions / redundancy / protocol / is supported / Media Redundancy Protocol (MRP) | Yes |
| product function / password protection for Web applications | No |
| product function / ACL - IP-based | Yes |
| product function / ACL - IP-based for PLC/routing | No |
| product function / switch-off of non-required services | Yes |
| product function / blocking of communication via physical ports | Yes |
| product function / log file for unauthorized access | No |
| product function / SICLOCK support | Yes |
| product function / pass on time synchronization | Yes |
| protocol / is supported / NTP | Yes |
| standards, specifications, approvals / certificate of suitability / CE marking | Yes |
| standards, specifications, approvals / certificate of suitability / UKCA marking | Yes |
| standards, specifications, approvals / certificate of suitability / KC approval | Yes |
| standards, specifications, approvals / certificate of suitability / Regulatory Compliance Mark (RCM) | Yes |
| standards, specifications, approvals / certificate of suitability / RoHS conformity | Yes |
| standards, specifications, approvals / certificate of suitability / EAC approval | Yes |
| standards, specifications, approvals / hazardous environments / header / certificate of suitability / ATEX | Yes |
| standards, specifications, approvals / hazardous environments / header / certificate of suitability / IECEx | Yes |
| standards, specifications, approvals / hazardous environments / header / certificate of suitability / ULhazloc approval | Yes |
| standards, specifications, approvals / hazardous environments / header / certificate of suitability / CCC / for hazardous zone according to GB standard | Yes |
| standards, specifications, approvals / hazardous environments / header / certificate of suitability / FM registration | Yes |
| standards, specifications, approvals / marine classification / header / Marine classification association / Polski Rejestr Statkow (PRS) | Yes |
| General Product Approval / Declaration of Con- | China RoHS |
| Approvals / Certificates / Manufacturer Declara- | China RoHS FM CCC-Ex |
| Manufacturer Declara- / last modified: | 3/10/2026 |
| Phase-out announced (PM400) | 1 October 2023 |
| Product cancellation (PM410) | 1 October 2025 |
| Spare part | Yes, supplied by Siemens as a spare part only |
Description
The Siemens 6GK7343-1EX30-0XE0 is the CP 343-1, Siemens's Industrial Ethernet card for the S7-300 that can also act as PROFINET IO controller. Siemens's data sheet gives an integrated two-port switch with RJ45 ports at 10/100 Mbit/s, ISO and TCP/IP transport, S7 communication and fetch/write, and operation as PROFINET IO controller or IO device, with an external 24 V DC supply. SiePortal lists it as product cancellation and its data sheet marks it as a spare part. Siemens names no direct successor for the order number; its route forward is migration to the S7-1500 with ET 200MP.
Application: Industrial Ethernet and PROFINET for S7-300
Used with: SIMATIC S7-300 rack (S7-300 backplane bus)
What is the 6GK7343-1EX30-0XE0 used for?
It connects an S7-300 to the plant Ethernet and can run PROFINET IO devices (remote I/O, drives) as their controller.
Key features
- Industrial Ethernet, 10/100 Mbit/s, integrated 2-port switch (RJ45)
- ISO and TCP/IP transport
- PROFINET IO controller or PROFINET IO device
- S7 communication, fetch/write
- External 24 V DC supply
- Discontinued by Siemens on 1 October 2025; spare part only
Documents and Resources
Associated Products
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Product Questions
Is the 6GK7343-1EX30-0XE0 discontinued?
Yes. Its manufacturer lifecycle status is Discontinued.
Can another Siemens SIMATIC S7-300 part replace it?
Potential replacements must be checked against the required ratings, dimensions and connections. Sharing a family name does not establish interchangeability.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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