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Siemens SIMATIC S7-400 6ES7401-2TA01-0AA0 CR2 Segmented Central Rack
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
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Overview
- Reserve an 18-slot central rack position with the required 482.5 mm width.
- Plan the local I/O across separate eight-slot and ten-slot P-bus segments.
- Exclude receive interface modules from the CR2 module plan.
SIEMENS SIMATIC S7-400 • CR2 RACK
6ES7401-2TA01-0AA0 CR2 Segmented Central Rack
An 18-slot central rack with separate local I/O segments and a communication bus across both segments.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES7401-2TA01-0AA0 |
| Product Type | CR2 central rack |
| Core Function | Segmented rack for two independent CPUs |
| Compatible Series | SIMATIC S7-400 |
Two CPU Segments
Two local P-bus segments allocate eight and ten slots to separate CPUs.
Shared Communication Bus
The C bus extends across both segments for backplane communication.
Central Installation
The rack provides the mechanical and electrical base for an S7-400 central controller.
Product Overview
6ES7401-2TA01-0AA0 is the SIMATIC S7-400 CR2 rack for a segmented central station. Its 18 single-width slots are divided into two local I/O bus segments of eight and ten slots, allowing two CPUs to operate with their own I/O.
A continuous communication bus crosses both segments, while the peripheral bus is separated. The rack accommodates S7-400 modules except receive interface modules and requires one power supply module for the central assembly.
Key Functions
Segmented Local I/O
Separates the P bus into eight-slot and ten-slot sections so each CPU addresses its own local I/O.
Cross-Segment Communication
Keeps the communication bus continuous across the rack for C-bus nodes in either segment.
Central Module Mounting
Holds the S7-400 power supply, CPUs and applicable modules on a sheet-steel mounting rail.
Official Specifications
| Single-Width Slots | 18 |
|---|---|
| Local P-Bus Segments | 2 segments with 8 and 10 slots |
| Communication Bus | Continuous across both segments |
| Peripheral Bus | Separated between the two segments |
| Mounting Rail Material | Sheet steel |
| Dimensions | 482.5 × 290 × 27.5 mm |
| Approximate Weight | 4.1 kg |
| Operating Ambient Temperature | 0 to 60 °C |
| Storage and Transport Temperature | 0 to 70 °C |
| Module Support | S7-400 modules except receive interface modules |
| Required Power Supply Modules | 1 |
| CE and UKCA Marking | Both present |
Frequently Asked Questions
Can I operate two independent CPUs on 6ES7401-2TA01-0AA0?
The rack has two separate local I/O bus segments, allowing one CPU to use its own I/O in each segment.
How are the slots split on 6ES7401-2TA01-0AA0?
The 18 single-width slots are arranged as two local segments with eight and ten slots.
Can both CPU segments communicate through 6ES7401-2TA01-0AA0?
The communication bus runs across both segments, so C-bus nodes can be addressed from either side.
Which S7-400 modules can I mount on 6ES7401-2TA01-0AA0?
The rack accepts S7-400 modules other than receive interface modules.
How many power supplies do I need for 6ES7401-2TA01-0AA0?
One power supply module is required for the CR2 central rack.
What cabinet space should I reserve for 6ES7401-2TA01-0AA0?
The rack measures 482.5 mm wide, 290 mm high and 27.5 mm deep.
Can I use 6ES7401-2TA01-0AA0 at 60 °C?
The specified operating ambient temperature reaches 60 °C.
