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User Manual
Universal Serial/PROFIBUS DP Gateway
GT200-DP-RS
WWW.SSTCOMM.COM
31
Baud Rate
: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200bps optional
Data bits
: 8
Check Bit
: none, odd, even, mark and space optional
Stop bits
: 1, 2
Transmission mode
: RTU, ASCII optional
Response timeout
: When the Modbus master sends commands, the time waiting for a response from the slave
ranges from 5~60000ms.
Delay between polls
: After one Modbus command has been sent and has received a correct response, the delay
time before the next command is sent ranges from 0 ~ 2500ms.
Output Mode
:
Modbus writing command (output command) has 3 kinds of outputting modes: Cycle, Forbidden and Change of
Value output.
Cycle: The same with Modbus read command, and output according to the scanning ratio.
Forbidden: Prohibit outputting Modbus write command.
Change of Value: When the output data has changed, it outputs the write command and stops outputting after
receiving a correct response.