• 135/15, A.Y.A Nadar Road,North Gate, Thanjavur-613008, Tamilnadu.
  • info.chendurengg@gmail.com
  • +91-8825772384
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Control & Instrumentation (C&I) Plant Design Solutions

Control & Instrumentation (C&I) Engineering Solutions

At Chendur Engineering Services (OPC) Private Limited, we offer end-to-end Cable Engineering and Control & Instrumentation (C&I) engineering solutions with complete Bill of Quantities (BOQ) support. Our expertise includes I/O list preparation, JB and PDB grouping, multi-core cable estimation, and detailed cable termination schedules across all system types—DCS, VFD, HT panels, LPBS, and field instrumentation.

We ensure precise documentation for fibre optic, Profibus, Modbus, and shielded cable networks. All BOQs are meticulously prepared to support procurement, planning, and execution—ensuring cost control, compliance, and efficient project delivery.
Core Capabilities
  • IO List Preparation & Assignment
  • Junction Box (JB) Grouping
  • Power Distribution Board (PDB) Grouping
  • Multi-Core Cable Quantity Estimation
  • Cable Schedule & Termination Schedule Preparation
  • DJB ( (Digital Junction Box)) Schedule
  • AJB (Analog Junction Box) Schedule
  • RJB (RTD Junction Box) Schedule SCS (Sub Control System), VFD (Variable Frequency Drive), HT Panel Schedules
  • LPBS (Local Push Button Station) Schedule – detailing field to LPBS connections
  • UPS & Non-UPS Power Schedules
  • Direct Cable Schedules
  • Automation Cable Schedules Include Below list:

✅ Fiber Optic Cable Schedules
✅ STP (Shielded Twisted Pair) Cable Schedules
✅ Profibus DP/PA Cable Schedules
✅ Modbus Cable Schedules

Our Detailed Capabilities in Control & Instrumentation (C&I) Engineering Solutions

IO List Preparation & Assignment

We provide comprehensive preparation and assignment of Input/Output (IO) lists for all control and instrumentation points, ensuring accurate signal mapping, streamlined integration with control systems, and effective coordination across engineering, installation, and commissioning phases.

Junction Box (JB) Grouping

We specialize in the systematic grouping of all field signals into Junction Boxes (JB) based on process equipment locations, enabling optimized cable routing, simplified wiring layouts, and ease of maintenance while ensuring organized and efficient signal distribution across the plant.

Power Distribution Board (PDB) Grouping

Organized grouping and systematic design of Power Distribution Boards (PDBs) to ensure efficient, balanced, and reliable power distribution within control systems, supporting operational safety and simplified maintenance.

Multi-Core Cable Quantity Estimation

Accurate estimation of multi-core cable quantities to support procurement and project planning.

Cable Schedule & Termination Schedule Preparation

Preparation of detailed cable and termination schedules, ensuring accurate documentation of cable routing, core utilization, termination details, and interface points to support seamless installation, testing, and commissioning activities.

DJB (Digital Junction Box) Schedule

Preparation of detailed DJB schedules outlining signal-wise grouping, terminal allocation, cable entry/exit details, and interconnection references to ensure structured wiring, simplified field installation, and ease of maintenance.

AJB (Analog Junction Box) Schedule

Preparation of comprehensive AJB schedules detailing the grouping of auxiliary signals, terminal allocations, cable entry/exit configurations, and identification tagging to ensure organized field wiring, streamlined installation, and reliable maintenance access.

RJB ,Schedule SCS, VFD, HT Panel Schedules

We specialize in the systematic grouping of all field signals into Junction Boxes (JB) based on process equipment locations, enabling optimized cable routing, simplified wiring layouts, and ease of maintenance while ensuring organized and efficient signal distribution across the plant.

LPBS (Local Push Button Station) Schedule

Preparation of detailed LPBS schedules outlining field device connections to each Local Push Button Station, including signal types, terminal assignments, cable references, and tag identifications to ensure clear documentation, accurate installation, and reliable operation of local control functions.

UPS & Non-UPS Power Schedules

Preparation of detailed power schedules for both UPS and Non-UPS systems, specifying load distribution, power source classification, panel-wise segregation, and backup power allocation to ensure continuous operation of critical equipment, optimized power reliability, and compliance with system design requirements.

Direct Cable Schedules

Preparation of detailed direct cable schedules specifying point-to-point connections between field devices and control panels, including cable types, lengths, core usage, termination details, and tag references to ensure accurate installation, efficient routing, and reliable signal transmission without intermediate junctions.

Automation Cable Schedules

Preparation of comprehensive automation cable schedules detailing point-to-point connections between PLCs, remote I/O modules, control panels, and field instruments, including cable specifications, signal types, core assignments, and termination details to ensure accurate integration, efficient installation, and reliable communication within the automation system.

Fiber Optic Cable Schedules

Preparation of detailed fibre optic cable schedules outlining point-to-point connections, fibre core allocation, termination details, cable routing paths, and equipment interface points to ensure high-speed, reliable data transmission and seamless integration of communication networks within the plant infrastructure.

STP (Shielded Twisted Pair) Cable Schedules

Preparation of detailed STP cable schedules specifying signal types, pair-wise core utilization, shielding requirements, termination details, and routing information to ensure noise-free signal transmission, electromagnetic interference (EMI) protection, and reliable communication across control and instrumentation systems.

Profibus DP Cable Schedules

Preparation of detailed Profibus DP cable schedules specifying device-to-device communication paths, cable types, segment lengths, termination and connector details, and addressing information to ensure reliable, high-speed data exchange and seamless integration within the digital fieldbus network.

Modbus Cable Schedules

Preparation of comprehensive Modbus cable schedules detailing master-slave communication links, cable specifications, device addresses, termination points, and routing paths to ensure reliable data transmission, proper network configuration, and seamless integration within the Modbus communication architecture.

OUR CAPABILITIES FOR CONTROL & INSTRUMENTATION

IO List Preparation & Assignment

Comprehensive preparation and assignment of Input/Output lists for all control and instrumentation points.

Junction Box (JB) Grouping

Grouping of all field signals into Junction Boxes (JB) based on process equipment locations for optimized wiring and maintenance.

Power Distribution Board (PDB) Grouping

Organized grouping and design for efficient power distribution within control systems.

Multi-Core Cable Quantity Estimation

Accurate estimation of multi-core cable quantities to support procurement and project planning.

Cable Schedule & Termination Schedule Preparation

Detailed schedules prepared for various junction boxes and panels.

Do you need assistance with a project?

We help you:
  • Reduce the complexity of your project
  • Deliver the right workforce solution
  • Minimize your risks
  • Meet your deadlines
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Information
  • Chendur Engineering Services (OPC) Pvt. Ltd. 135/15, A.Y.A Nadar Road, North Gate, Thanjavur  613008,Tamil Nadu, India.
  • info.chendurengg@gmail.com
  • +91-8825772384

Copyright ©️ 2025 Chendur Engineering Services. All Rights Reserved Designed by Wink Dezign

Facebook-f Linkedin-in Twitter Youtube
Quick Links
Information
  • Chendur Engineering Services (OPC) Pvt. Ltd. 135/15, A.Y.A Nadar Road, North Gate, Thanjavur  613008,Tamil Nadu, India.
  • info.chendurengg@gmail.com
  • +91-8825772384

Copyright ©️ 2025 Chendur Engineering Services. All Rights Reserved Designed by Wink Dezign

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