Comet T0310, Instruction Manual, Page: 7 / 12

IE-SNC-T03(4)10+T5410-06 7
•
Jumper opened and button shortly pressed – device goes to Info mode, see chapter „Info
mode“.
•
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.
Modbus registers of the device
Variable Unit Address[hex]
X
Address[dec]
X
Format Size Status
Measured
temperature
[°C]
[°F]*
0x0031 49 Int*10 BIN16 R
Address of device [-] 0x2001 8193 Int BIN16 R/W*
Code of
communication
speed
[-] 0x2002 8194 Int BIN16 R/W*
Serial number of
device Hi
[-] 0x1035 4149 BCD BIN16 R
Serial number of
device Lo
[-] 0x1036 4150 BCD BIN16 R
Version of
Firmware Hi
[-] 0x3001 12289 BCD BIN16 R
Version of
Firmware Lo
[-] 0x3002 12290 BCD BIN16 R
Addition for device T5410 - with atmospheric pressure measurement
Variable Unit* Address[hex]
X
Address[dec]
X
Format Size Status
Atmospheric
pressure
hPa
0x0034 52
Int*10
BIN16 R
PSI Int*1000
inHg Int*100
mBar Int*10
oz/in
2
Int*10
mmHg Int*10
inH
2
O Int*10
kPa Int*100
Explanation:
•
*
depends on device setting (by User’s software)
•
Int*10 register is in format integer*10
•
R register is designed only for reading
•
W*
register is designed for writing, for details see file “
Description of communication
protocols of Txxxx series
”
•
X
register addresses are indexed from zero – register 0x31 is physically sent as value
0x30, 0x32 as 0x31 (zero based addressing).
Note: In case there is a need for reading of measured values from the device with higher resolution
than one decimal, measured values in device are stored also in „Float“ format, which is not directly
compatible with IEEE754.