Design example
SCADA Retrofit for Utility Stations
Plan RTU or gateway data collection around the existing utility-station signals, cabinet and SCADA interface.
Design example: use the site requirements and equipment path below to plan your own configuration.
Hardware in this guide
Product-family photos. See each product page for specifications and options.
Planning a similar site?
Send the site count, signals, network, power and reporting target. We will return a comparable hardware configuration for quotation.
Site conditions to check
Compare power, communication and equipment requirements for irrigation, pumps, soil and weather monitoring.
Project team
A utility integrator planning retrofit hardware for distributed stations.
Challenge
The station signals need a documented read path that preserves the existing control system.
Equipment in the system
Example equipment arrangement. Check compatibility and agree who handles software, PLC/SCADA programming and site installation.
Data destination
Customer platform or an agreed third-party service
Site context
- Legacy field signals and meters
- SCADA or operations system already present
- Cabinet space and power needed review
Approach
- Build point list from existing signals
- Select RTU/gateway path by protocol
- Keep local alarm and northbound data needs separate
Hardware plan
- Remote IO / RTU module
- RS485 protocol gateway
- 4G or Ethernet backhaul
- Cabinet accessories
Hardware reference
Product-family photos; the model and enclosure may vary.
Integration path
- Digital and analog I/O, RS485 collection
- Modbus TCP or MQTT handoff
- SCADA tag mapping support
Checks before rollout
- Confirm the signal list and existing PLC or SCADA interfaces
- Compare gateway-only equipment with any required I/O and power accessories
- Test registers and upstream data while preserving the existing control workflow
Quote inputs
- Point list
- Existing protocol
- Panel power and space
- SCADA endpoint and tag naming rules
Related pages
FAQ
How can I use this design example?
Compare the measurement points, equipment connections and site checks with your project. Send the existing devices, available power and receiving system so we can check a suitable configuration.
Can telemetry be added while keeping the existing PLC and SCADA?
Yes, when an approved read path is available. Map the required signals and use a compatible RTU or protocol gateway. Confirm device roles, polling ownership, register maps and the receiving interface so the addition does not disturb the existing control system.
What should a SCADA retrofit pilot verify?
Check the required registers or I/O points, data types, timestamps, update interval and behavior after an interruption. Send the existing PLC or SCADA details, signal list, register maps and backhaul constraints before selecting the equipment.