Module Overview & Purpose
- Extends your S7-400 PLC system to remote racks.
- Sends data and power to expansion units.
- Enables distributed control over long distances.
- Essential for large factory layouts.
- Simple plug-and-play installation.
Technical Specifications & Data
- Electrical Data:
- Power from Backplane: 5V DC.
- Max Current Draw: 1550 mA.
- Max Power Loss: 7.75 Watts.
- Connection & Cabling:
- Max Cable Distance: 102.25 meters.
- Bus Type: C-Bus (communication and I/O).
- Required Plug: Termination plug 6ES7461-3AA0-7AA0.
- Physical Specifications:
- Dimensions: 25mm (W) x 290mm (H) x 280mm (D).
- Weight: Approximately 630 grams.
- Mounting: S7-400 rack slot.
- Performance & Compatibility:
- Function: Send Interface Module (Master).
- Pairs With: IM 461-3 Receive Module.
- Data Transfer: Full I/O and process data.
Key Advantages For Your System
- Saves costly long wiring runs for signals.
- Centralizes control logic while distributing I/O.
- Uses reliable Siemens PROFIBUS cabling.
- Maintains fast communication over 100m.
- Simplifies maintenance and troubleshooting.
What You Get & Support Terms
- One Siemens IM 460-3 module (6ES7460-3AA01-0AB0).
- Termination plug is sold separately.
- Protected by a 12-month warranty.
- Quick delivery via FedEx, UPS, or DHL.
- Comprehensive installation guide.
Frequently Asked Questions
What is the difference between C-bus and P-bus?
C-bus carries I/O data and power. P-bus only carries communication data. The IM 460-3 uses the C-bus.
How many remote racks can one module support?
One IM 460-3 can connect to multiple receive modules (IM 461-3) in series, up to the 102m cable limit.
Can I use standard Ethernet cable?
No. You must use the specified Siemens PROFIBUS cable for reliable data and power transfer.
What happens if the cable is too long?
Signal errors and data loss will occur. Always keep total cable length under 102.25 meters.
What is a common installation error?
Forgetting the termination plug at the last receive module. This causes reflection errors on the bus.
How To Choose This Interface Module
- You have a Siemens S7-400 central controller rack.
- Your I/O points are far from the main PLC (up to 100m).
- You want to reduce long individual sensor wires.
- Your system uses or needs C-Bus communication.
- You are expanding an existing S7-400 system.
For technical questions: Email info@oiltechcontrols.com or call +86 158 8020 0923.
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