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Siemens 6ES7960-1AA04-0XA0 S7-400H V4 Synchronization Module
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
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Overview
- Confirm the installed S7-400H CPU pair uses four matching 6ES7960-1AA04-0XA0 modules.
- Route two crossed duplex optical links with LC–LC connectors.
- Check each cable run against the 10 m distance and 7 dB attenuation limits.
- Use the LINK OK LEDs to verify both links during commissioning.
SIMATIC S7-400H · fault-tolerant CPU link
6ES7960-1AA04-0XA0 S7-400H V4 Synchronization Module
Short-distance optical synchronization module for linking redundant S7-400H CPUs over cable runs up to 10 m.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES7960-1AA04-0XA0 |
| Product Type | Fiber-optic synchronization module |
| Core Function | Synchronizes two redundant S7-400H CPUs over optical fiber |
| Compatible Series | SIMATIC S7-400H, V4 short-distance synchronization |
10 m CPU separation
The near-range module supports up to 10 m between the redundant CPUs.
Matched module set
An S7-400H fault-tolerant system uses four modules of the same type.
Link diagnostics
A LINK OK LED helps check synchronization-cable quality during commissioning.
Product Overview
6ES7960-1AA04-0XA0 is the short-distance V4 synchronization module for two redundant SIMATIC S7-400H CPUs. Two modules are installed per CPU, with optical links connected in pairs.
The Siemens S7-400H system manual provides electrical, optical and mechanical data for this exact order number, together with cable requirements for the 10 m connection.
Key Functions
Redundant CPU synchronization
Two modules per CPU provide the paired optical links between S7-400H subsystems.
Short-distance optical link
This article is rated for a maximum 10 m separation between CPUs and 850 nm optical operation.
Commissioning indication
The LINK OK LED reports whether the synchronization connection is sound.
Official Specifications
| Siemens article number | 6ES7960-1AA04-0XA0 |
|---|---|
| Module version | V4, near-range synchronization |
| Automation system | SIMATIC S7-400H |
| Maximum CPU separation | 10 m |
| Supply voltage | 5.1 V from CPU |
| Current consumption | 210 mA |
| Power loss | 1.1 W |
| Optical wavelength | 850 nm |
| Maximum cable attenuation | 7 dB |
| Maximum difference between cable lengths | 9 m |
| Module dimensions, W × H × D | 25 × 53 × 140 mm |
| Module weight | 0.065 kg |
| Modules per redundant system | 4 of the same type |
| Modules installed per CPU | 2 |
| Recommended fiber | Multimode 50/125 µm or 62.5/125 µm |
| Cable connectors | LC–LC |
| Optical cable links per system | 2 crossed duplex cables |
Frequently Asked Questions
What does 6ES7960-1AA04-0XA0 synchronize?
It links two redundant S7-400H CPUs through paired fiber-optic connections.
How far apart may the CPUs be when using 6ES7960-1AA04-0XA0?
The near-range module supports a maximum 10 m separation between CPUs.
How many 6ES7960-1AA04-0XA0 modules does one fault-tolerant system need?
Four identical modules are required, with two installed in each CPU.
How is 6ES7960-1AA04-0XA0 powered?
The module receives 5.1 V from the CPU and draws 210 mA.
Which fiber and connectors should I use with 6ES7960-1AA04-0XA0?
Use multimode 50/125 µm or 62.5/125 µm fiber with LC–LC connectors for links up to 10 m.
What optical attenuation limit applies to 6ES7960-1AA04-0XA0?
The near-range module permits up to 7 dB optical attenuation.
How can I check the installed link on 6ES7960-1AA04-0XA0?
Check the LINK OK LED during commissioning and verify both crossed duplex cables.
