Yokogawa ALP111-S01 PROFIBUS-DP Communication Module The Yokogawa ALP111-S01, also cataloged as the ALP111 PROFIBUS-DP Communication Module, operates as a dedicated...
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Description
Yokogawa ALP111-S01 PROFIBUS-DP Communication Module
The Yokogawa ALP111-S01, also cataloged as the ALP111 PROFIBUS-DP Communication Module, operates as a dedicated hardware component for cyclic data exchange between CENTUM VP distributed control systems and PROFIBUS-DP slave devices over EIA-RS-485 electrical interfaces.
Hardware Specifications
Parameter
Specification
Model
ALP111-S01
Brand
Yokogawa
Origin
Japan
Weight
0.3 kg
Dimensions
45 × 97 × 103 mm
Operating Temp
-10 to +60 degC
Storage Temp
-25 to +70 degC
Power Consumption
Max 0.7 A @ 5 VDC
Interface
PROFIBUS-DP Master, EIA-RS-485
Connector Type
D-sub 9-pin female (communication), D-sub 9-pin male (maintenance, RS-232C)
Transmission Speed
9.6 kbps to 12 Mbps
Max Segment Distance
1.2 km @ 9.6 kbps
Signal Isolation
Optical isolation between logic and bus lines
Cable Type
Shielded twisted pair
Process Bus Protocol Integration
The module supports deterministic cyclic I/O updates through PROFIBUS-DP services. Channel-to-channel isolation minimizes ground loop effects when interfacing with heterogeneous field devices. Configuration utilizes GSD files imported into the CENTUM VP engineering suite, ensuring consistent mapping of process variables and diagnostics into the control database.
Frequently Asked Questions
Q: Does the ALP111-S01 support hot-swapping?
A: Yes. The module can be replaced online without interrupting operation of other modules in the same FIO node unit.
Q: What is the maximum number of connected slaves?
A: Up to 125 PROFIBUS-DP slave devices per module are supported under standard configuration limits.
Q: Is redundancy possible with this module?
A: Redundant pairs can be configured to maintain communication continuity during single-module failure events.
Field Installation Guidelines
Mount the module directly onto a compatible FIO node unit backplane. Use only shielded, impedance-controlled PROFIBUS cable with proper termination resistors at both ends of each bus segment. Ensure shield grounding occurs at a single point to avoid ground loops. Maintain separation of communication cabling from high-voltage power wiring to reduce electromagnetic interference. Verify connector retention and torque specifications before energizing the system.
