The 6ES7964-2AA04-0AB0: SIMATIC S7 IF964-DP interface module for S7-400 racks. Provides PROFIBUS DP master (default) and slave capability. Occupies one slot at 26 mm width, 130 mm depth. Transmission rate up to 12 Mbit/s. Cable length varies with speed — at 9.6 kbit/s up to 1 200 m, at 12 Mbit/s limited to 100 m. Factor that into your bus topology. Module draws power from the S7-400 backplane; typical loss 1 W. Provides isolated 5 V (P5ext, max 90 mA) and 24 V (max 150 mA) for the DP interface and connected slaves. No external 24 V supply needed for the module itself. Supports direct data exchange (slave-to-slave) and equidistance bus cycle. Handles up to 125 DP slaves, depending on CPU load. Lifecycle: Active — Siemens lists it as current production. No end-of-life notice. I'll quote it against your BOM line; send an RFQ for lead time.
Siemens 6ES7964-2AA04-0AB0 IF964-DP, 12 Mbit/s
MPN6ES7964-2AA04-0AB0
Active
Siemens 6ES7964-2AA04-0AB0 IF964-DP, PROFIBUS DP master/slave interface module for S7-400, 26 mm wide, 130 mm deep, 12 Mbit/s.
$502.92 – $773.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| 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. |
| Power loss, typ. | 1 W |
| PG (OP communication) | Yes |
| Direct data exchange (slave-to-slave communication) | Yes |
| Cable length, max. | 1 200 m; At 9.6 kbit/s: max. 1 200 m; at 12 Mbit/s: max. 100 m |
| Depth | 130 mm |
| Width | 26 mm |
| Height | 54 mm |
| Weight, approx. | 65 g |
| Overall | device-dependent |
| Isolated | Yes |
| SYNC (FREEZE) | Yes |
All specifications
| Parameter | Value |
|---|---|
| Equidistance | Yes |
| Inputs, max. | 244 byte |
| Outputs, max. | 244 byte |
| PROFIBUS DP slave | Yes |
| PROFIBUS DP master | Yes; Default setting |
| Transmission rate, max. | 12 Mbit/s |
| Number of DP slaves, max. | 125; depending on the CPU used |
Product details
Frequently asked questions
What is the maximum PROFIBUS transmission rate?
12 Mbit/s.
Does the module need an external 24 V power supply?
No. It draws power from the S7-400 backplane. The module provides isolated 24 V for the DP interface, not for itself.
MPN
6ES7964-2AA04-0AB0