Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ALP111-S01 |
| Brand | Yokogawa |
| Origin | Japan |
| Product Type | PROFIBUS-DP Communication Modules |
| System Compatibility | CENTUM VP DCS, FCS, Node Units |
| Communication Protocol | PROFIBUS DP-V0 / DP-V1 |
| Interface Standard | EIA-RS-485 |
| Communication Port | 1 x D-sub 9-pin Female |
| Maintenance Port | 1 x D-sub 9-pin Male, RS-232C |
| Transmission Speed | 9600 bps to 12 Mbps |
| Maximum Transmission Distance | Up to 1.2 km per segment at 9600 bps |
| Input Voltage | 24 VDC +/-10% |
| Maximum Current Consumption | 0.7 A |
| Power Consumption | 3.5 W max. |
| Operating Temp | -10 deg C to +60 deg C |
| Storage Temp | -25 deg C to +70 deg C |
| Dimensions | 45 mm x 97 mm x 103 mm |
| Weight | Approx. 0.3 kg |
| Mounting Compatibility | AFV30, AFV40, AFV10, AFF50, ANB10, ANB11, ANR10 series units |
FOUNDATION Fieldbus / PROFIBUS Connectivity and DCS Communication
The Yokogawa ALP111-S01 provides PROFIBUS-DP master communication functions between Yokogawa field control hardware and external PROFIBUS field devices. Moreover, the module processes cyclic and acyclic data exchange through the EIA-RS-485 physical layer.
The module supports PROFIBUS DP-V0 and DP-V1 communication modes, allowing controllers to exchange process data with remote I/O devices, sensors, actuators, and motor control equipment. In addition, the communication interface incorporates signal isolation to reduce field-side electrical interference.
For Yokogawa DCS applications, the ALP111-S01 supports redundant configuration by installing paired modules in designated slots. Therefore, the control system can maintain communication availability when configured with supported redundancy arrangements.
The module design follows Yokogawa process control communication requirements, including channel-to-channel isolation considerations and industrial network signal integrity management.
Frequently Asked Questions
Q: Does the ALP111-S01 support PROFIBUS-DP redundancy configuration?
A: Yes. The ALP111-S01 supports paired-slot redundant configuration when installed in compatible Yokogawa control units.
Q: What physical communication interface does the ALP111-S01 use?
A: The module uses an EIA-RS-485 compliant PROFIBUS interface through a D-sub 9-pin connector.
Q: Can the ALP111-S01 connect directly to standard Ethernet networks?
A: No. The ALP111-S01 is designed for PROFIBUS-DP communication and does not provide Ethernet communication functions.
Field Installation Guidelines
- Install the ALP111-S01 only in compatible Yokogawa field control units and node units.
- Verify the module slot position and system configuration before installation.
- Use PROFIBUS-certified RS-485 cables and connectors to maintain communication signal quality.
- Connect cable shielding according to the site grounding practice to reduce electromagnetic interference.
- Separate PROFIBUS communication wiring from high-voltage power cables and strong electromagnetic sources.
- Confirm communication parameters, including baud rate and device addressing, before commissioning.
- Check module diagnostic information through the Yokogawa engineering environment after installation.
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