Lantronix XPort APS: Modbus Protocol User Guide - Page 20

4: Monitor Mode and Firmware UpgradeThe easiest way to upgrade your protocol firmware (or "reflash") is to use our DeviceInstaller utility. DeviceInstaller is a free utility program provided by Lantronix that discovers, configures, upgrades, and manages Lantronix Device Servers. It can be downloaded from the Lantronix website at www.lantronix.com/support/downloads. For instructions on using DeviceInstaller to configure the IP address and related settings or for more advanced features, see the DeviceInstaller Online Help. The User Guide for the Device Server explains two other ways to reflash. You can do it serially with HyperTerminal or directly by Ethernet with a Trivial-File-Transfer-Protocol (or TFTP) Client. The TFTP method takes just a few seconds - much faster than the 5-plus minutes required serially. With all protocol firmware, use the TFTP destination filename of .ROM (in caps). There are important differences between the industrial protocol firmware files and the standard Lantronix firmware files. Although the hardware may be the same, you will not be able to download a standard Lantronix firmware (such as the standard "3Q" or the older Modbus versions 1.0, 1.1, or 1.2). These firmware files are rejected with the error "Sorry, that firmware not supported." And although you can download any industrial firmware to non-IAP Lantronix Device Servers, they will not function. When started, an industrial firmware on the wrong hardware will blink the red LED, and you will see the error message "Sorry, this firmware is not supported" from the serial port. The industrial firmware also has blocked the "SF" command within the Monitor. Modbus Protocol User Guide 20