Yokogawa ALP121-S00 Industrial PROFIBUS-DP Master Communication Module for CENTUM VP Control Systems
Yokogawa ALP121-S00 Industrial PROFIBUS-DP Master Communication Module for CENTUM VP Control Systems
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Brand:Yokogawa Electric Item No.:Yokogawa ALP121-S00 Product Origin:Japan Product Dimensions:32 × 127 × 127 mm Product Weight:0.30 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Yokogawa ALP121-S00 is a robust PROFIBUS-DP master communication module designed for seamless integration within Yokogawa distributed control platforms, including CENTUM VP and compatible field control systems. This module acts as a high-performance interface that enables controllers to communicate efficiently with PROFIBUS-DP slave devices such as remote I/O systems, PLCs, drives, and intelligent field instruments.
Engineered for industrial reliability, the ALP121-S00 supports high-speed fieldbus communication while maintaining stable data exchange across complex automation networks. The module is widely used in process control environments where consistent communication, long transmission distance, and deterministic control performance are essential for system stability.
With its compact design and reliable communication architecture, the ALP121-S00 enables engineers to extend DCS connectivity across large industrial plants while maintaining precise control over field-level devices.
Technical Specifications
Parameter
Specification
Model
ALP121-S00
Product Type
PROFIBUS-DP Communication Module
Communication Role
PROFIBUS-DP Master
Communication Interface
PROFIBUS-DP
Physical Layer
EIA-RS-485
Communication Port
1 × D-Sub 9-pin (female)
Transmission Speed
9.6 kbps – 12 Mbps
Maximum Transmission Distance
Up to 1.2 km (at 9600 bps)
Maximum Slave Devices
Up to 125 devices
Signal Isolation
Electrical isolation between field and system
Maximum Current Consumption
0.7 A
Compatible Systems
CENTUM VP / Yokogawa FIO systems
Dimensions (L × W × H)
32 × 127 × 127 mm
Weight
0.30 kg
The ALP121-S00 module enables centralized controllers to communicate with distributed field equipment using the PROFIBUS-DP network standard, ensuring stable communication even in large-scale industrial environments.
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Applications
The ALP121-S00 module is designed for demanding industrial automation systems that require reliable fieldbus communication.
Typical industrial applications include:
Distributed Control System (DCS) communication networks
PROFIBUS-DP field device integration
Process control plants and refineries
Power generation automation systems
Industrial production and manufacturing lines
Its ability to connect large numbers of field devices to the control system allows operators to monitor and control production processes in real time.
Advantages
High-Speed Fieldbus Communication
The module supports communication speeds up to 12 Mbps, allowing rapid data exchange between controllers and field devices.
Long-Distance Industrial Networking
PROFIBUS-DP communication distance can reach 1.2 km, making it suitable for large plant infrastructures.
Flexible Device Connectivity
Supports integration with multiple field devices including remote I/O modules, PLC systems, and smart instrumentation.
Reliable Industrial Signal Isolation
Electrical isolation between the control system and field network helps improve system stability and protects equipment from electrical interference.
Redundant Communication Capability
Dual module configurations can be implemented for redundant network communication, improving system reliability in critical automation environments.
Technical FAQs
1. What is the main function of the ALP121-S00 module?
It provides PROFIBUS-DP master communication between Yokogawa DCS controllers and field devices.
2. Which protocol does ALP121-S00 use?
The module communicates using the PROFIBUS-DP industrial fieldbus protocol.
3. What is the maximum communication speed?
The module supports speeds ranging from 9.6 kbps to 12 Mbps.
4. How many communication ports are available?
It includes one PROFIBUS-DP communication port.
5. What type of connector is used?
A 9-pin D-Sub female connector is used for the PROFIBUS communication interface.
6. What is the maximum communication distance?
The network can reach 1.2 km at 9600 bps, depending on cable quality and configuration.
7. Can the module connect to multiple slave devices?
Yes. It supports communication with up to 125 PROFIBUS-DP slave devices.
8. What control systems support this module?
It is compatible with CENTUM VP distributed control systems and Yokogawa FIO platforms.
9. What is the typical power consumption?
The module consumes approximately 0.7 A during operation.
10. Which industries commonly use the ALP121-S00?
It is widely used in oil & gas, power generation, chemical processing, and large-scale manufacturing automation systems.
