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PLC Programming and Consulting Services RFP Response x ENTERPRISE <br />EA Project Number: EA25CSAl60, 0.0.0 AUTOMATION <br />A TETRA TECH COMPANY <br />3.3 Program Development, Testing, and Maintenance <br />EA utilizes an internal test and development platform (test platform) at our headquarters in Irvine <br />to develop, test, troubleshoot, and remotely support our clients and their PLC/HMI programs. <br />Our test platform is a critical resource that allows us to replicate a situation and test remediation <br />strategies much faster than we could if we had to mobilize and travel to site to test our clients' <br />programs. It also allows us to develop and test program updates in an isolated environment <br />where production and personnel safety are not affected. <br />The core of our test platform is the test platform server infrastructure, which hosts virtualized, as - <br />built clones of all onsite computers, network appliances, and in cases where a physical version is <br />not practical, simulated network security devices. Servers are air -gapped and secured using <br />industry and Department of Homeland Security best practices. <br />When the City requires any PLC/HMI programming, testing, troubleshooting, or maintenance, EA <br />will utilize the test platform to execute work prior to onsite deployments. EA has hosted the City's <br />PLC backups and hardware for the last 10 years. <br />4Wd� <br />V <br />