Description
Yokogawa ALP121-S00 PROFIBUS-DP Communication Module
SEO Titles
- Yokogawa ALP121-S00 | PROFIBUS-DP Master Module
- Yokogawa ALP121-S00 | 12 Mbps PROFIBUS-DP Interface
- Yokogawa ALP121-S00 | Standard Type Communication Module
- Yokogawa ALP121-S00 | DCS Network Replacement Module
- Yokogawa ALP121-S00 | OEM Communication Interface
Product Core Brief
- el:
- Brand: Yokogawa
- Series: CENTUM VP / N-IO and FIO communication modules
- Core Function: Acts as a PROFIBUS-DP master, exchanging process and status data between a Yokogawa field control station and compatible PROFIBUS-DP slave devices.
- Product Type: Fieldbus communication module
- Key Specs: PROFIBUS-DP over an EIA-RS-485-compliant physical interface; 9.6 kbps to 12 Mbps; one 9-pin female D-sub communication port.
- Configuration: Standard type, basic option
- Condition: Must be confirmed for the individual unit; new surplus, used, and refurbished are distinct conditions.
web-material3.yokogawa.com+1
Product Overview
Theawa is a PROFIBUS-DP master communication module for Yokogawa control-system architectures. It enables a field control station to exchange data with PROFIBUS-DP slave devices such as remote I/O stations, PLCs, and other supported field equipment. Within a CENTUM VP installation, this provides a defined fieldbus connection for integrating distributed devices into the control strategy without treating every field signal as an individual hardwired I/O point. The module is designed for compatible N-IO/FIO configurations and specified field control units and bus-node units.
On the network side, the uses an EIA-RS-485-compliant physical interface and supports transmission rates from 9.6 kbps through 12 Mbps. Its single communication port uses a 9-pin female D-sub connector, with signal isolation between the field side and the system side. Maximum transmission distance depends on baud rate and network design; the documented figure is up to 1.2 km at 9.6 kbps, not at the highest supported speed. Proper cable selection, termination, grounding, and device addressing remain essential to stable communication.
For system integration, verify the control-station model, control-function revision, engineering software requirements, and slave-device configuration before ordering aawa . Yokogawa documentation lists compatible FCS and ESB bus-node arrangements, while PROFIBUS certification records identify as a DP master. Certification details can depend on module style and revision, so do not infer DP-V1 certification for every suffix or revision without checking the applicable documentation. The “S00” suffix denotes the standard type and basic option; the “S01” variant is associated with the ISA Standard G3 coating option. That distinction matters when equipment operates in a corrosive atmosphere.
Product Introduction (Non-Templated)
When a PROFIBUS-DP master fails, remote I/O data may become unavailable to the control station, disrupting monitoring and control. Theawa provides one PROFIBUS-DP port with speeds up to 12 Mbps and a documented maximum distance of 1.2 km at 9.6 kbps.
web-material3.yokogawa.com
For a CENTUM VP DCS upgrade or legacy module replacement, confirm the FCS model, software revision, bus configuration, and network settings before installation. The standard S00 version should not be confused with the S01 G3-coated option.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | PROFIBUS-DP communication module |
| System Application | CENTUM VP, N-IO/FIO architectures |
| Module Function | PROFIBUS-DP master |
| Physical Interface | EIA-RS-485 compliant |
| Communication Ports | 1 |
| Connector | 9-pin female D-sub |
| Transmission Speed | 9.6 kbps to 12 Mbps |
| Maximum Transmission Distance | 1.2 km at 9.6 kbps |
| Signal Isolation | Between field and system sides |
| Maximum Current Consumption | 0.7 A |
| Approximate Module Weight | 0.3 kg |
| Supported Mounting Arrangements | Compatible AFV-series field control units and ANB10/ANB11 bus-node units |
| PROFIBUS-DP V1 Certification | style S2 or later, according to the applicable certification documentation |
| Suffix Configuration | S = standard type; first 0 = basic type; second 0 = basic option |
| G3 Coating Option | -S01 is the associated G3-coated version |
| Operating Temperature | Verify against the applicable hardware specifications |
| Condition | Confirm for the individual unit |
ALP121-S00
Related Products
The following Yokogawa modules provide related communication functions within N-IO/FIO or CENTUM VP architectures. They have different interfaces or purposes and should not be treated as direct substitutes without a configuration review.
- -S01 — G3-coated option for applications requiring the specified corrosive-atmosphere protection. Verify the environmental requirement and exact suffix before ordering.
- ALE111 — Ethernet communication module for N-IO/FIO systems. Used for Ethernet connectivity rather than a PROFIBUS-DP master connection.
- ALR111 — Two-port RS-232C serial communication module. Intended for serial devices rather than PROFIBUS-DP networks.
- ALR121 — Two-port RS-422/RS-485 serial communication module. Supports serial communication and is not a replacement for the master function.
- ALF111 — FOUNDATION Fieldbus communication module. Used for a different fieldbus protocol and device ecosystem.
- A2LP131 — PROFINET communication module for N-IO/FIO architectures. Consider for an approved PROFINET design, not as a drop-in PROFIBUS-DP replacement.
- A2LP141 — Another PROFINET communication module in the N-IO/FIO family. Confirm the required network role and system support before selection.
- ANB10 — ESB bus-node unit used with compatible field control units. It provides a mounting and bus-node arrangement, not the same function as the communication module.
- ANB11 — Optical ESB bus-node unit for compatible control architectures. Confirm the node configuration and optical bus requirements.
Frequently Asked Questions (FAQ)
Q1: Is theawa compatible with my CENTUM VP DCS?
Compatibility depends on the field control unit, control-function revision, engineering tools, and hardware configuration. Before ordering, verify:
- The installed FCS model and revision.
- The supported module type and suffix.
- The control-function software requirements.
- The PROFIBUS-DP slave configuration and device description files.
The model is documented for compatible CENTUM VP N-IO/FIO arrangements, but that does not establish compatibility with every installation.
Q2: Can I hot-swap this module?
Do not assume that live replacement is permitted. Confirm the applicable Yokogawa hardware manual and plant maintenance procedure. Removing a PROFIBUS-DP master can interrupt communication with connected slave devices, even if the controller itself remains operational. Plan the maintenance window, document the existing network configuration, and complete communication checks before returning the system to service.
Q3:the support firmware v3.1?
A general firmware-v3.1 compatibility claim cannot be verified from the model number alone. Check the exact FCS model, control-function revision, engineering software version, and applicable Yokogawa release documentation. Also confirm whether the required PROFIBUS-DP features are supported by the installed hardware revision.
Q4: How many PROFIBUS-DP slave devices can it communicate with?
The supports a PROFIBUS-DP master network. Secondary specifications list up to 125 slave stations, subject to bus-cycle time and the actual network configuration. The practical number depends on device data size, baud rate, response times, and the control application’s update requirements. Validate the proposed configuration against the applicable Yokogawa manual before commissioning.
Q5: Will replthe erase my control logic?
Do not assume that replacing the communication module will either erase or preserve every relevant setting. Control logic and fieldbus configuration may be managed separately, but the exact retention and restoration procedure depends on the system architecture. Back up the application and network configuration as required, record slave addresses and communication parameters, and follow the approved replacement procedure.
Q6: How can I verify that a nelus is genuine and in the stated condition?
Request photographs of the actual module, including its model label, suffix, serial or traceability markings, and connector. Ask for a written condition statement and functional test evidence. A claim of “new surplus” does not by itself prove that the module is factory-sealed, unused, or suitable for the installed DCS configuration.
Q7: What warranty should I expect for a reent ?
Warranty coverage depends on the supplier’s written terms and the unit’s condition. Confirm the coverage period, return conditions, exclusions, and whether testing or repair is included. For a critical control-system application, also require verification of the module’s identity and a commissioning test plan; warranty coverage does not replace technical acceptance.
Procurement recommendation: Specifyawa with its complete suffix. Confirm the FCS and bus-node compatibility, control-function revision, PROFIBUS-DP network requirements, and environmental conditions before purchasing. If the installation requires ISA G3 coating, evaluate the -S01 variant against the approved system documentation rather than substituting it without review.
