
For EVSE manufacturers
Release every charger firmware with evidence.
Every firmware update can break a charging session that worked yesterday. comemso test systems repeat the same sessions in development, verification, production and field service – each stage with the system that fits it.1
CharIN CCTS validated: Basic and Extended DC EVSE test profiles.
- What for
- Charger manufacturers who release firmware for AC and DC charging stations.
- What it does
- One test path from controller development to field service. The charging sessions you define once run again after every update.
- Not for
- Replacing formal certification – the test results prepare it.
One test path for every firmware release
From the first controller to the installed charger
Each stage answers a different release question. The charging sessions defined in development run again in verification, production and field service.
- 1Development
Charging communication on the bench: EV simulation, protocol analysis and communication development without full-power equipment.
EVCA ComOnly - 2Verification
Communication, signals, power integration, fault simulation and conformance on the complete charging station. CharIN CCTS validated for the Basic and Extended DC EVSE test profiles.
EVCA Flex, IEC 61851-23:2023, CharIN CCTS - 3Production
Repeatable end-of-line tests with functional checks, parameter verification and traceable results for each unit.
Easy Chester EOL - 4Field
Commissioning, maintenance and service with electrical safety checks, charging-function tests and guided reports. EVCA Interop records a real vehicle–charger pair when a field case occurs.
Easy Chester Ultimate, EVCA Interop - 5Certification
Defined test cases, standard editions, DUT roles, verdicts and reports prepare formal certification. They do not replace it.
Test Libraries

“Thanks to the use of your equipment, we have achieved excellent results in our validation and certification process. Their quality and performance have exceeded our expectations.”
“Currently the best and most complete vehicle simulator / sniffer / man in the middle we have used.”
For an expansion of its test equipment, an EVSE manufacturer selected EVCA Multi Mobile, EVCA Flex with IEC 61851-23 test capability and EVCA MCS. Read how the decision was made · All customer references
Frequently asked questions
EVSE manufacturers
Which comemso system fits which stage of charger development?
EVCA ComOnly covers communication development on the bench. EVCA Flex adds signals, power, fault simulation and conformance on the complete charging station. Easy Chester EOL tests each unit in production, Easy Chester Ultimate supports commissioning and service, and EVCA Interop investigates a real vehicle–charger pair.
Does testing with comemso replace certification?
No. Test Libraries and the CharIN CCTS validated DC EVSE test profiles prepare formal certification; they do not replace it.
How does a project start?
With a 15-minute demo: an engineer shows your charger test case on a real EVCA system. The written quotation then covers EV simulation, power equipment, Test Libraries and integration for your task.
For EVSE manufacturers
Test system and power equipment follow your development stage, vehicle behaviour, communication checks and fault cases.
15-minute demo. An engineer shows your charger test case on a real EVCA system.Written quotation. EV simulation, power equipment, Test Libraries and integration for your task – then you order.Delivery and start. Commissioning and training are agreed in the quotation.