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The gateway will store the received HART frame in a continuous region within "Universal receiving data" and
write the length of the received data to the "Universal receive data length", then change the value of "universal
receiving label". If no data is received within the response waiting time, the GT200-HT-MT will make "universal
receive error counter" to plus 1. Before sending the universal frame, all users should read the universal receiving
label and the error counter. After finishing the universal frame, it needs to read these two values continuously until
one of them changes.
6.3 Trigger Command
Users can trigger any HART command which is configured in the GT200-HT-MT through Modbus TCP. The
specific approach is: appointing Modbus register address to "trigger command ID" of one channel; using 06H
command of Modbus to write the user trigger command number (when using SST-HE-CFG to configure
commands, the software will automatically calculate and display) to the "trigger command number". Then
rewriting "the trigger label" can trigger the value to change and trigger the GT200-HT-MT to finish a trigger
