The RS-485 interface enables communication between RS-485 network and HMT130 transmitter. The RS-485 interface is not isolated.
Set the RS-485 interface by using the commands listed in this section. Other serial line commands are presented in List of serial commands.
seri [b p d s]<cr> where
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Use the seri command to input RS-485 bus settings. This command affects the serial port where the settings are given (service port or user port). |
seri2 [b p d s]<cr> where
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The seri2 command is equivalent to the seri command, but it affects only the user port settings. The main purpose of the command is to change the user port settings via the service port. |
Syntax | Description | ||
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echo [x]<cr> where
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Use the echo command to enable/disable echo
of characters received over the serial line.
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smode [xxxx]<cr> where
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Use the smode command to set the default
serial interface mode.
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Syntax | Description |
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sdelay [delay]<cr> where
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Use the sdelay command to set the answer delay (RS-485 turnaround time) for the User Port. |
Example:
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Syntax | Description |
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intv [n xxx]<cr> where
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Use the intv command to set the RUN mode output interval. The time interval is used only when the RUN mode is active. Setting the RUN output interval to zero enables the fastest possible output rate. |
Example: set output interval to 10
min:
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Syntax | Description | ||
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addr [aa]<cr> where
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Use the addr command to view or input the
RS-485 transmitter address.
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Example: Configure the transmitter to use
address 99 (after the
?prompt)
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Syntax | Description |
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send [aa]<cr> where
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Use the send command to output the reading once in POLL mode. |
Syntax | Description |
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open [aa]<cr> where
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When all transmitters on the RS-485 bus are in POLL mode, the open command sets one transmitter temporarily to STOP mode so that other commands can be entered. |
Syntax | Description |
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close<cr> |
The close command switches the transmitter back to the POLL mode. |
Example:
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