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.
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The Siemens 6GK1162-3AA00 CP 1623 is a PCI Express x1 communication processor card that connects a PC station to Industrial Ethernet at 10/100/1000 Mbit/s through its onboard 2-port RJ45 switch. It supports S7 communication, open communication via SEND/RECEIVE, and PROFINET CBA, and up to 4 of these cards can be installed in a single PC station.
Four CP 1623 cards can run in one PC station, so a system needing more than 120 S7 connections or more Industrial Ethernet segments scales by adding cards rather than switching to a different processor. The onboard 2-port switch lets the card sit inline on a ring or line topology without a separate external switch, and PROFINET CBA support (up to 10,000 connections total) makes it the fit for PC-based component-based automation rather than pure S7/open communication setups.
| product type designation | CP 1623 Communications processor CP 1623 PCI Express X1 (3, 3 V/12 V) for connection to Industrial Ethernet (10/100/1000 Mbit/s) with 2-port switch (RJ45) can be uploaded onto device HARDNET-IE S7 and S7-REDCONNECT operating system support see SIMATIC NET software released as of SIMATIC NET CD V7.0 HF1. |
|---|---|
| product brand name | SIMATIC NET |
| transfer rate | 10, 100, 1000 Mbit/s |
|---|
| 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: at the 1st interface / according to Industrial Ethernet | RJ45 port |
| type of electrical connection: of the backplane bus | PCI Express x1 |
| type of electrical connection: for power supply | 2-pole terminal block |
| Part number | 6GK1162-3AA00 |
|---|---|
| Type designation | CP 1623 Communications processor CP 1623 PCI Express X1 (3, 3 V/12 V) for connection to Industrial Ethernet (10/100/1000 Mbit/s) with 2-port switch (RJ45) can be uploaded onto device HARDNET-IE S7 and S7-REDCONNECT operating system support see SIMATIC NET software released as of SIMATIC NET CD V7.0 HF1. |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4019169160506 |
| ETIM class | EC001423 |
| eCl@ss | 27242208 |
| type of voltage / of the supply voltage | DC |
|---|---|
| type of voltage supply / optional external power supply | Yes |
| supply voltage: 1 / from backplane bus | 3.3 V |
| supply voltage: 2 / from backplane bus | 12 V |
| supply voltage: external | 24 V |
| relative symmetrical tolerance / at DC: at 3.3 V | 9% |
| relative symmetrical tolerance / at DC: at 5 V | 5% |
| relative symmetrical tolerance / at DC: at 12 V | 8% |
| relative symmetrical tolerance / at DC: at 24 V | 33 % |
| consumed current: 1 / from backplane bus / at DC / maximum | 0.85 A |
| consumed current: 2 / from backplane bus / at DC / maximum | 0.4 A |
| consumed current: from external supply voltage / at DC / at 12 V / maximum | 0.55 A |
| consumed current: from external supply voltage / at DC / at 24 V / maximum | 0.3 A |
| power loss [W] | 7.6 W |
| power loss [W] / in switch mode / maximum | 7.2 W |
| ambient temperature: during operation | 5 ... 55 °C |
|---|---|
| ambient temperature: during storage | -20 ... +60 °C |
| ambient temperature: during transport | -20 ... +60 °C |
| relative humidity / at 25 °C / without condensation / during operation / maximum | 95 % |
| protection class IP | IP00 |
| module format | PCI Express x1 (half length) |
|---|---|
| width | 18 mm |
| height | 111 mm |
| depth | 167 mm |
| number of plug-in cards of same design / plug-in / per PC station | 4 |
|---|---|
| number of units / note | - |
| software / for open communication / by means of SEND/RECEIVE / required | Yes, HARDNET-IE S7 (S7-1613) |
|---|---|
| number of possible connections / for open communication / by means of SEND/RECEIVE / maximum | 120 |
| software / for S7 communication / required | Yes, HARDNET-IE S7 (S7-1613) |
|---|---|
| number of possible connections / for S7/PG communication / maximum | 120 |
| number of possible connections / for optimized S7 communication / maximum | 40 |
| number of active connections / with multi-protocol mode | 120 |
|---|---|
| number of configurable connections / per PC station | 207 |
| software / for PROFINET CBA communication / required | Yes, PN CBA OPC server |
|---|---|
| number of remote connection partners / with PROFINET CBA | 228 |
| number of connections / with PROFINET CBA / total | 10000 |
| product function / MIB support | Yes |
|---|---|
| protocol / is supported: SNMP v1 | Yes |
| protocol / is supported: SNMP v3 | No |
| protocol / is supported: DCP | Yes |
| protocol / is supported: LLDP | No |
| configuration software / required | Included in the scope of delivery of the required software product |
| configuration software / for PROFINET CBA / required | Yes, SIMATIC iMAP |
| identification & maintenance function: I&M0 - device-specific information | Yes |
| identification & maintenance function: I&M1 - higher level designation/location designation | Yes |
| identification & maintenance function: I&M2 - installation date | No |
| identification & maintenance function: I&M3 - comment | No |
| identification & maintenance function: I&M4 - signature | No |
| identification & maintenance function: I&M4 - OEM data | No |
| product feature / switch | Yes |
|---|---|
| product function / switch-managed | No |
| product function / with IRT / PROFINET IO switch | No |
| software / for redundancy function / required | Yes, HARDNET-IE S7-REDCONNECT for communication with SIMATIC S7 H systems |
|---|
| product function / SICLOCK support | Yes |
|---|---|
| protocol / is supported / NTP | No |
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 240.36 kg |
| global warming potential [CO2 eq]: during manufacturing | 33.2 kg |
| global warming potential [CO2 eq]: during operation | 207.1 kg |
| global warming potential [CO2 eq]: after end of life | 0.06 kg |
| Net weight | 0.212 kg |
|---|---|
| Package dimensions | 167 × 18 × 111 mm |
| Country of origin | DE |
| Shipping weight | 0.712 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for CP 1623 Communications processor CP 1623 PCI Express X1 (3, 3 V/12 V) for connection to Industrial Ethernet (10/100/1000 Mbit/s) with 2-port switch (RJ45) can be uploaded onto device HARDNET-IE S7 and S7-REDCONNECT operating system support see SIMATIC NET software released as of SIMATIC NET CD V7.0 HF1. is 85176200.
The EAN (GTIN) of CP 1623 Communications processor CP 1623 PCI Express X1 (3, 3 V/12 V) for connection to Industrial Ethernet (10/100/1000 Mbit/s) with 2-port switch (RJ45) can be uploaded onto device HARDNET-IE S7 and S7-REDCONNECT operating system support see SIMATIC NET software released as of SIMATIC NET CD V7.0 HF1. is 4019169160506.
CP 1623 Communications processor CP 1623 PCI Express X1 (3, 3 V/12 V) for connection to Industrial Ethernet (10/100/1000 Mbit/s) with 2-port switch (RJ45) can be uploaded onto device HARDNET-IE S7 and S7-REDCONNECT operating system support see SIMATIC NET software released as of SIMATIC NET CD V7.0 HF1. ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
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