YOKOGAWA AAP135-S00 S2 Pulse Input Module | Replacement, Equivalent & Selection Guide
The YOKOGAWA AAP135-S00 S2 is a high-precision Pulse Input Module designed for use within YOKOGAWA’s CENTUM VP and CS 3000 distributed control systems. This page provides full technical specifications, verified compatible replacements, application guidance, and sourcing information to help engineers and procurement teams make confident, spec-accurate decisions.
Technical Specifications
- Manufacturer: YOKOGAWA Electric Corporation
- Model: AAP135-S00 S2
- Module Type: Pulse Input Module
- SKU: AAP135-S00 S2
- Compatible DCS Platform: CENTUM VP / CS 3000
- Input Type: Pulse / Frequency signal input
- Suffix Code -S00: Standard configuration, no special options
- Suffix Code S2: Revision / hardware generation identifier
- Weight: Approx. 300 g
- Condition Available: New, Refurbished, Tested Used
- Compliance: CE, RoHS (verify with datasheet for specific revision)
Note: Always cross-reference with the official YOKOGAWA AAP135 datasheet and your system’s I/O module compatibility list before installation.
Compatible Replacement & Equivalent Models
When the AAP135-S00 S2 is discontinued, long lead-time, or out of budget, the following models may serve as functional equivalents. Compatibility must be verified against your specific system revision and firmware version.
- YOKOGAWA AAP135-S00 S1 – Earlier hardware revision; functionally equivalent in most CENTUM VP applications. Confirm firmware compatibility.
- YOKOGAWA AAP135-S10 – Extended-option variant; check suffix codes for I/O channel differences.
- YOKOGAWA AAB841 – Analog/Pulse hybrid input; suitable as a replacement in mixed-signal applications.
- YOKOGAWA AAI141-S03 – Analog input module; applicable where pulse-to-analog conversion is implemented upstream.
- Third-party DCS Pulse Input Modules – Emerson, Honeywell, ABB equivalents may be considered for full system migrations. Contact Konmask for cross-reference support.
⚠ Disclaimer: Third-party replacements require engineering validation. Konmask.com provides cross-reference guidance only; final compatibility responsibility rests with the end-user’s engineering team.
Why Choose the Original Model
- Guaranteed OEM Compatibility: Plug-and-play integration with CENTUM VP and CS 3000 without firmware patching.
- Proven Field Reliability: YOKOGAWA modules are rated for continuous industrial operation in demanding process environments.
- Manufacturer Support: Access to YOKOGAWA’s global technical support, firmware updates, and spare-parts ecosystem.
- Regulatory Traceability: Full documentation trail for ISO, SIL, and functional safety audits.
- Reduced Commissioning Risk: Eliminates integration uncertainty associated with third-party substitutes.
Typical Applications
- Flow measurement via pulse-output flowmeters (turbine, vortex, Coriolis)
- Rotational speed and RPM monitoring in rotating equipment
- Batch counting and totalization in chemical and pharmaceutical processes
- Energy metering and utility monitoring in power generation facilities
- Conveyor and packaging line speed control in discrete manufacturing
- Water and wastewater treatment plant instrumentation
System Compatibility
- Primary Platform: YOKOGAWA CENTUM VP (all generations)
- Legacy Platform: YOKOGAWA CS 3000
- I/O Bus: Compatible with standard YOKOGAWA field control station (FCS) I/O bus architecture
- Slot Type: Standard YOKOGAWA I/O module slot (verify nest/card cage compatibility)
- Power Supply: Supplied via backplane; no external power required
- Communication: Integrated via YOKOGAWA Vnet/IP or legacy Ethernet/RS-485 depending on FCS generation
Always consult the YOKOGAWA System Configuration Guide for your specific FCS model before ordering.
Selection Guide
Use the following criteria to confirm the AAP135-S00 S2 is the correct module for your application:
- Step 1 – Identify your DCS platform: Confirm you are running CENTUM VP or CS 3000. Other platforms require different module families.
- Step 2 – Verify signal type: The AAP135 accepts pulse/frequency inputs. If your field device outputs 4–20 mA or HART, select an analog input module (e.g., AAI141 series) instead.
- Step 3 – Check suffix codes: -S00 = standard option set. S2 = hardware revision. Confirm your system’s supported revision list in the YOKOGAWA compatibility matrix.
- Step 4 – Count available I/O channels: Verify the number of pulse input channels required matches the AAP135’s channel count per module.
- Step 5 – Confirm slot availability: Ensure your FCS nest has an available I/O slot of the correct type.
- Step 6 – Review firmware version: Some AAP135 revisions require minimum FCS firmware versions. Check YOKOGAWA release notes.
Quality Assurance & Sourcing
- Source: Konmask.com sources YOKOGAWA modules from authorized distributors, OEM surplus, and verified industrial resellers.
- Inspection: All used/refurbished units undergo visual inspection, functional bench testing, and cleaning before shipment.
- Documentation: Certificate of conformance, test reports, and original packaging (where available) provided on request.
- Warranty: 90-day replacement warranty on tested-used units; 12-month warranty on new/factory-sealed stock.
- Lead Time: In-stock units ship within 1–3 business days. Special-order items: 2–6 weeks depending on availability.
- Export Compliance: All orders subject to applicable export control regulations (EAR/ECCN). End-user declaration may be required.
How to Order
- Online: Add to cart directly on this page and proceed to checkout.
- RFQ / Bulk Orders: Email [email protected] with your quantity, required condition (new/refurbished/used), and delivery timeline.
- Phone / WhatsApp: +0086 19859288691 — available Monday–Friday, 09:00–18:00 CST.
- Lead Time Confirmation: Stock availability is confirmed at time of order. Contact us before placing large orders to verify current inventory.
- Payment: T/T (bank transfer), PayPal, and major credit cards accepted. Net-30 terms available for qualified B2B accounts.
Replacement & Compatibility FAQ
Q: Can I use the AAP135-S00 S1 instead of the S2 revision?
A: In most cases yes, but you must verify firmware compatibility with your FCS version. Contact YOKOGAWA technical support or Konmask for guidance.
Q: Is the AAP135-S00 S2 compatible with CENTUM VP R6.x?
A: Compatibility depends on the specific FCS firmware release. Refer to YOKOGAWA’s hardware compatibility matrix for CENTUM VP R6.x.
Q: Can this module accept NAMUR-standard pulse signals?
A: The AAP135 supports standard pulse inputs; NAMUR compatibility depends on the field device’s output driver. Consult the module datasheet for input voltage/current thresholds.
Q: Do you supply new or used units?
A: Both. Specify your preference when ordering. All used units are tested and include a 90-day warranty.
Q: Can Konmask provide a cross-reference for a non-YOKOGAWA system?
A: Yes. Contact us with your current system details and we will provide a cross-reference recommendation.
Q: What is the typical lead time for out-of-stock units?
A: Typically 2–6 weeks depending on global availability. Contact us for a real-time stock check.
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