6
115200Bd, parameters of communication link are 1 start bit + eight bit data word (LSB first) +
1 stop bit, without parity.
Jumper
Jumper is located next to connection terminals. If communication protocol compatible with
standard Advantech-ADAM is selected, its function is the following:
• If jumper during switching ON the power is closed, transmitter always communicates with
following parameters regardless stored setting in the transmitter:
communication speed 9600 Bd, without check sum, transmitter address 00h
• If jumper during switching ON the power is not closed, transmitter communicates in
accordance with stored setting.
• If jumper is closed during transmitter operation, transmitter temporarily changes its address
to 00h, it will communicate in the same communication speed as before closing jumper and
will communicate without check sum. After jumper is opened setting of address and check
sum is reset in accordance with values stored in transmitter.
• Communication speed and check sum are possible to change only if jumper is closed.
• Jumper closed and button pressed for longer than six seconds – causes restoring of
manufacturer setting of communication protocol, i.e. sets Modbus RTU communication
protocol, device address sets to 01h and communication speed to 9600Bd (after button press
there is “dEF” message blinking at LCD display. Six seconds later message “dEF” stays
shown, it means manufacturer setting of communication protocol is done).
For communication with device which measure more than one value, there is necessary to add at
the end of command, number of communication channel, where the measured value is mapped.
Command for value reading is #AAx(CRC) CR, where AA is device address and x is number of
communication channel by next table:
Measured value Number of communication
channel
Temperature 0
Relative humidity 1
Computed value 2
ARION communication protocol
The device supports communication protocol ARiON version 1.00. For more details see file
“Description of communication protocols of Txxxx series”.
Error States of the device
Device continuously checks its state during operation. In case error is found LCD displays
corresponding error code:
Error 0
First line displays „Err0“.
Check sum error of stored setting inside device’s memory. This error appears if incorrect writing
procedure to device’s memory occurred or if damage of calibration data appeared. At this state
device does not measure and calculate values. It is a serious error, contact distributor of the
instrument to fix.
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