ALP121-S00 PROFIBUS-DP Module Overview
- Brand: Yokogawa
- Part Number: ALP121-S00
- Model: ALP121
- Module type: PROFIBUS-DP communication
- Condition: New & original factory packing
- Used in Yokogawa Centum VP systems
- Built for stable field bus control
Core Communication Profile
- Protocol: PROFIBUS-DP
- Physical layer: RS-485 compliant
- Port type: D-sub 9 pin female
- Total ports: 1
- Signal isolation: Field to system isolated
- Noise safe design
- Supports multi-drop bus layout
Speed And Distance Matrix
- Speed range: 9.6 kbps to 12 Mbps
- Auto rate support in DP networks
- Max distance: 1.2 km at 9.6 kbps
- Typical distance at 1.5 Mbps: about 200 m
- Typical distance at 12 Mbps: about 100 m
- Works with repeaters for longer runs
Electrical And Hardware Data
- Max current use: 0.7 A
- Weight: about 0.3 kg
- High EMI resistance
- Bus line surge tolerance built in
- Stable under long cable load
- Hot-swap friendly design (system dependent)
Suffix Code Tree Structure
- ALP121
- PROFIBUS-DP communication base
- -S
- Standard hardware type
- -0
- Default version flag
- -1 (optional branch)
- ISA Standard G3 coating
- Better for harsh air sites
Integration Selling Points
- Fast link to DP field devices
- Easy map with DCS tags
- Low delay data exchange
- Good for drives and remote IO
- Stable under high node count
- Tested with Yokogawa racks
- Clean signal isolation path
Installation And Use Notes
- Use shielded PROFIBUS cable
- Keep proper end termination
- Avoid star wiring on DP bus
- Check node address plan first
- Label D-sub connectors clearly
Warranty And Logistics
- Factory warranty: 12 months
- Serial checked before ship
- Anti-static packing
- Courier: FedEx
- Courier: UPS
- Courier: DHL
Professional FAQ And Buying Tips
- How do I choose DP speed for my network
- Use lower speed for long cables. Use high speed for short runs.
- When should I select G3 coating option
- Use it in humid, salty, or chemical air sites.
- What is the common field mistake on DP wiring
- Missing termination resistors at bus ends.
- Can this module talk to third party DP slaves
- Yes, if the slave follows PROFIBUS-DP standard.
- Should I keep spare bus modules in stock
- Yes. One spare per system is good practice.
Contact And Quote Request
- Email: info@oiltechcontrols.com
- WhatsApp: +86 158 8020 0923
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