Part number
6GK7545-1GX00-0XE0
Model no
CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).
$2,390.85 On request Dispatch — · From TürkiyeAsk us for an alternative
Discontinued by the manufacturer

Siemens has discontinued 6GK7545-1GX00-0XE0

We sell remaining stock while it lasts.

No replacement announced yet. Tell us the application and we will propose an alternative.

SIMATIC S7-1500

Siemens 6GK7545-1GX00-0XE0 SIMATIC S7-1500 CP 1545-1 Industrial Ethernet Communications Processor

SIMATIC S7-1500 CP 1545-1 Ethernet communications processor, RJ45, VPN/firewall, MQTT cloud link.

Rated current
0.3 A
Communication
TCP/IP, UDP, S7 communication, MQTT, SNMP v1/v3, FTP, NTP
EAN
4047622526293
Description

About the CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).

The Siemens 6GK7545-1GX00-0XE0 CP 1545-1 is a communications processor that connects a SIMATIC S7-1500 CPU to Industrial Ethernet through a single RJ45 port running from 10 to 1000 Mbit/s. It adds TCP/IP, S7 communication, and MQTT cloud connectivity to the CPU, plus a stateful firewall with IPSec VPN for up to 16 secured connections, and up to eight modules can run per CPU depending on CPU type.

Certifications & Standards

  • CE
  • UKCA
  • cULus
  • KC
  • RCM
  • RoHS
  • EAC
  • ATEX
  • IECEx
  • ULhazloc

Selection Notes

The 16-connection IPSec VPN and stateful firewall make the CP 1545-1 the module to add when an S7-1500 station needs a protected remote-access or cloud path rather than plain Ethernet exposure through the CPU's integrated port. Its MQTT client and 500-data-point limit fit periodic telemetry to a cloud broker, not high-frequency process data acquisition. Because up to eight modules can share one CPU (the exact count depends on CPU type), a station that needs several isolated network segments - for example a plant network plus a separate maintenance VPN - can add a second or third CP 1545-1 instead of routing everything through one interface.

Specification

Full specification

112 values · Last verified 01 Nov 2026

General 2

product type designation CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).
product brand name SIMATIC NET

Transfer rate 1

transfer rate: at the 1st interface 10 ... 1000 Mbit/s

Interfaces 3

number of interfaces / according to Industrial Ethernet 1
number of electrical connections: at the 1st interface / according to Industrial Ethernet 1
type of electrical connection: at the 1st interface / according to Industrial Ethernet RJ45 port
Show all 112 specifications ↓ Show less ↑106 more values in Identification, Supply voltage, current consumption, power loss, Ambient conditions, Design, dimensions and weights, Product functions / cloud connectivity, Performance data / open communication, Performance data / S7 communication, Performance data / multi-protocol mode, Performance data / IT functions, Performance data / telecontrol, Product functions / management, configuration, engineering, Product functions / diagnostics, Product functions / routing, Product functions / security, Product functions / time, Standards, specifications, approvals, Standards, specifications, approvals / hazardous environments / header, Standards, specifications, approvals / Environmental Product Declaration, Logistics.

Identification 8

Part number 6GK7545-1GX00-0XE0
Type designation CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).
Brand Siemens
Condition New, factory sealed
Source Siemens and its authorised distributors
Warranty Manufacturer warranty
Lifecycle status Discontinued by the manufacturer
EAN 4047622526293

Supply voltage, current consumption, power loss 5

type of voltage / of the supply voltage DC
supply voltage / 1 / from backplane bus 15 V
relative symmetrical tolerance / at DC: at 15 V 3%
consumed current: from backplane bus / at DC / at 15 V / typical 0.3 A
power loss [W] 4.5 W

Ambient conditions 6

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 %
protection class IP IP20

Design, dimensions and weights 6

module format Compact module S7-1500 single width
width 35 mm
height 142 mm
depth 129 mm
fastening method: S7-1500 rail mounting Yes
product features, product functions, product components / general number of units: per CPU / maximum 8

Product functions / cloud connectivity 6

protocol / is supported: Message Queuing Telemetry Transport (MQTT) Yes
protocol / is supported: Advanced Message Queuing Protocol (AMQP) No
product function / for cloud connectivity: trigger management Yes
product function / for cloud connectivity: time stamping Yes
product feature / for cloud connectivity / buffered message frame memory No
number of data points per device / maximum 500

Performance data / open communication 3

number of possible connections / for open communication: by means of T blocks / maximum 118; depending on the system upper limit
data volume: as user data per ISO on TCP connection / for open communication / by means of T blocks / maximum 65536 byte
number of Multicast stations 118

Performance data / S7 communication 1

number of possible connections / for S7 communication: maximum 118; depending on the system upper limit

Performance data / multi-protocol mode 1

number of active connections / with multi-protocol mode 118

Performance data / IT functions 5

number of possible connections: as client / by means of FTP / maximum 32
number of possible connections: as server / by means of FTP / maximum 16
number of possible connections: as server / by means of HTTP / maximum 4
number of possible connections: as email client / maximum 1
data volume / as user data for email / maximum 64 Kibyte

Performance data / telecontrol 1

protocol / is supported: TCP/IP Yes

Product functions / management, configuration, engineering 9

product function / MIB support Yes
protocol / is supported: SNMP v1 Yes
protocol / is supported: SNMP v3 Yes
protocol / is supported: DCP Yes
protocol / is supported: LLDP Yes
configuration software: required STEP 7 Professional V15.1 (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 functions / diagnostics 1

product function / web-based diagnostics Yes; via S7-1500 CPU

Product functions / routing 15

service / routing / note IP routing up to 1 Mbps
product function: static IP routing Yes
product function: static IP routing IPv6 No
product function: dynamic IP routing No
product function: dynamic IP routing IPv6 No
protocol / is supported: RIP v1 No
protocol / is supported: RIPv2 No
protocol / is supported: RIPnG for IPv6 No
protocol / is supported: OSPFv2 No
protocol / is supported: OSPFv3 for IPv6 No
protocol / is supported: VRRP No
protocol / is supported: VRRP for IPv6 No
protocol / is supported: BGP No
protocol / is supported: PPP No
protocol / is supported: PPoE via DSL No

Product functions / security 12

firewall version stateful inspection
product function / with VPN connection IPSec
type of encryption algorithms / with VPN connection AES-256, AES-192, AES-128, 3DES-168, DES-56
type of authentication procedure / with VPN connection Preshared key (PSK), X.509v3 certificates
type of hashing algorithms / with VPN connection MD5, SHA-1, SHA-256, SHA-384, SHA-512
number of possible connections / with VPN connection 16
product function: password protection for Web applications No
product function: ACL - IP-based No
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 No
product function: log file for unauthorized access Yes

Product functions / time 3

product function / SICLOCK support No
product function / pass on time synchronization Yes
protocol / is supported: NTP Yes

Standards, specifications, approvals 7

certificate of suitability / CE marking Yes
certificate of suitability / UKCA marking Yes
certificate of suitability / cULus approval 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 5

certificate of suitability / ATEX Yes
certificate of suitability / IECEx Yes
certificate of suitability / ULhazloc approval Yes
certificate of suitability / CCC / for hazardous zone according to GB standard Yes
certificate of suitability / FM registration Yes

Standards, specifications, approvals / Environmental Product Declaration 5

Environmental Product Declaration Yes
global warming potential [CO2 eq]: total 162.49 kg
global warming potential [CO2 eq]: during manufacturing 21.24 kg
global warming potential [CO2 eq]: during operation 140.9 kg
global warming potential [CO2 eq]: after end of life 0.35 kg

Logistics 7

Net weight 0.1 kg
Package dimensions 129 × 35 × 142 mm
Country of origin DE
Shipping weight 0.6 kg
Ships from Türkiye
Dispatch —
Stock On request

Source: manufacturer data · Last verified: 01 Nov 2026

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Certifications

Certifications and standards

  • / CE marking
  • / UKCA marking
  • / cULus approval
  • / KC approval
  • / Regulatory Compliance Mark (RCM)
  • / RoHS conformity
  • / EAC approval
  • / ATEX
  • / IECEx
  • / ULhazloc approval
Quick answers

Questions about the CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).

What is the rated current of CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).?

The rated current of CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps). is 0.3 A.

What is the HS code of CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps). for customs?

The tariff (HS) code on file for CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps). is 85176200.

What is the EAN of CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).?

The EAN (GTIN) of CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps). is 4047622526293.

Where does CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps). ship from, and how fast?

CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps). ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.

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Series

Siemens SIMATIC S7-1500

Brand
Siemens
Series
SIMATIC S7-1500
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CP 1545-1 communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, UDP, S7 communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbps).

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Siemens · 6GK7545-1GX00-0XE0

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