Technical Overview
The ADM11/CE1 is a high-reliability digital input module designed for the Yokogawa Electric Corporation CENTUM VP and CENTUM CS 3000 platforms.
This module is engineered for discrete signal acquisition, converting field-side dry or wet contact signals into logic-level data for the DCS processor. It is typically used to monitor:
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Limit switch positions
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Motor run/stop and fault status
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Operator pushbuttons
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Safety interlocks
The “/CE1” suffix denotes compliance with specific EMC and interface standards, making it suitable for installations requiring CE marking and enhanced electromagnetic immunity.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Model Designation | ADM11/CE1 |
| Input Configuration | 16-channel discrete contact inputs |
| Input Signal Type | Dry contact or voltage-sensing (wet) contact |
| Minimum Pulse Width | ≤ 20 ms detection |
| Isolation Method | Photocoupler isolation (field-to-system) |
| Power Dissipation | 1.5 W maximum |
| Weight | 0.113 kg |
| Operating Temperature | 0°C to +60°C |
Industrial Applications
Equipment Status Monitoring
Tracks operational and fault states of pumps, compressors, conveyors, and auxiliary systems.
Safety Interlock Systems
Monitors valve position limit switches, safety gates, and ESD permissive signals.
Sequential & Batch Control
Provides discrete event triggers for automated startup, shutdown, and batch processing sequences.
Technical FAQ
Does the ADM11/CE1 require external field power?
Yes. A 24 V DC field power supply is typically required to energize (wet) the contacts so the module can detect current flow when the circuit closes.
What is the advantage of the /CE1 variant?
The /CE1 version is commonly specified for CE-marked projects or installations requiring enhanced electromagnetic compatibility (EMC), ensuring stable performance in high-EMI environments such as power plants and refineries.
Can this module detect high-speed pulse inputs?
No. The ADM11/CE1 is intended for status monitoring, not high-speed pulse counting. For turbine flow meters or encoder applications, a dedicated pulse module such as the AAP849-S50 is recommended.
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