Medford

Medford is a lightweight diagnostic utility developed by the sz development that lets automation engineers, instrumentation technicians, and system integrators inspect live data flowing through Modbus RTU (serial) and Modbus TCP/IP (Ethernet) networks without altering the process. By opening a straightforward read-only window onto slave register tables, the program simplifies tasks such as verifying sensor scaling, confirming PLC memory mapping, or commissioning a new SCADA node, all from one compact interface that accepts either traditional RS-485 dongles or standard network sockets. The single-window layout displays coil, discrete input, input register, and holding register values in decimal, hexadecimal, or binary formats, while automatic refresh and adjustable polling intervals give users real-time feedback on changes triggered by remote masters or field devices. Because Medford never writes to the bus, it can be left running on production lines for long-term observation without risk of accidentally toggling an output or corrupting historical logs. Support for both Modbus variants also makes the tool convenient for plants migrating from serial to Ethernet, allowing side-by-side comparison of identical register ranges across media converters or gateways. Released in one stable build numbered 1.30, the application keeps deployment simple: no drivers, no runtimes, and a sub-megabyte footprint that starts instantly from any Windows workstation near the control cabinet. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.

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