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.
The Siemens 6ES7964-2AA04-0AB0 is the IF964-DP interface module for the SIMATIC S7-400, giving the CPU a built-in PROFIBUS DP master (default setting) or DP device port running up to 12 Mbit/s. It addresses up to 125 DP devices, depending on the CPU used, with an isolated interface and 1 W typical power loss.
Fit IF964-DP when the S7-400 CPU needs a standalone PROFIBUS DP master for up to 125 devices without dedicating a separate CP443 communication processor; the default setting is DP master, but the module can be reconfigured as a DP device to hang the CPU off another master instead. Direct slave-to-slave data exchange and SYNC/FREEZE support matter for coordinated I/O updates across the DP segment.
| Current consumption, max. | 150 mA; Current consumption from S7-400 bus: The module uses no current at 24 V, it provides this voltage only at the DP interface. Total current consumption of the components connected to the DP interface, but maximum 150 mA. Current carrying capacity of the isolated 5 V (P5ext) maximum 90 mA, current carrying capacity of the 24 V maximum 150 mA. |
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| Power loss, typ. | 1 W |
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| PROFIBUS DP: Cable length, max. | 1 200 m; At 9.6 kbit/s: max. 1 200 m; at 12 Mbit/s: max. 100 m |
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| Part number | 6ES7964-2AA04-0AB0 |
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| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4019169123921 |
| ETIM class | EC001423 |
| eCl@ss | 27242208 |
| Isolated | Yes |
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| Protocols: PROFIBUS DP master | Yes; Default setting |
| Protocols: PROFIBUS DP device | Yes |
| PROFIBUS DP master: Transmission rate, max. | 12 Mbit/s |
| PROFIBUS DP master: max. number of DP devices Services | 125; depending on the CPU used |
| PROFIBUS DP master: PG/OP communication | Yes |
| PROFIBUS DP master: Equidistance | Yes |
| PROFIBUS DP master: SYNC/FREEZE | Yes |
| PROFIBUS DP master: Direct data exchange (slave-to-slave communication) Address area | Yes |
| PROFIBUS DP master: Inputs, max. | device-dependent |
| PROFIBUS DP master: Outputs, max. User data per DP device | device-dependent |
| PROFIBUS DP master: Outputs, max. | 244 byte |
| Width | 26 mm |
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| Height | 54 mm |
| Depth | 130 mm |
| Weight, approx. | 65 g |
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| eClass | 14 27-24-22-08 |
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| ETIM | 10 EC001423 |
| IDEA | 4 3564 |
| UNSPSC | 15 32-15-17-05 |
| General Product Approval Miscellaneous | For use in hazard- |
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| General Product Approval EMV | ous locations |
| FM Type Examination Cer- | tificate |
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| For use in hazard-Maritime application ous locations | NK / Nippon Kaiji Ky- okai |
| Net weight | 0.129 kg |
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| Country of origin | DE |
| Shipping weight | 0.629 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 6ES7964-2AA04-0AB0 is 85176200.
The EAN (GTIN) of 6ES7964-2AA04-0AB0 is 4019169123921.
6ES7964-2AA04-0AB0 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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