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Reading Via Modbus
®
RTU
Setting Baud Rate
Your T1R comes confi gured to communicate at 38,400 baud, with 8 data bits, one stop
bit, and no parity. The sensor can also be set to 19,200 or 9600 baud, if needed for your
application.
If needed, set your T1R to the desired baud rate as follows:
•
Click on the Confi gure menu, and then select Advanced.
•
From the fl yout menu, select Sensor Baud Rate. (You may be asked for a
password. Enter admin.)
•
On the popup box, click the down-arrow and select the baud rate you need, and
then click OK.
Once you have changed the baud rate on the T1R, you will not be able to talk to it with
Aqua4Plus until you change the baud rate for Aqua4Plus, as follows:
•
Click the Options menu, and then select Baud Rate.
•
On the popup box, click the down-arrow, select the baud rate you need, and then
click OK.
The current Aqua4Plus baud rate is displayed in the lower right corner of the main
Aqua4Plus window.
Taking Measurements
Reading Registers
Read measurements using Modbus function 03 – Read Holding Registers.
Readings are located in two registers, starting at address 62594. (T1R register
addressing is zero based, i.e., starts at zero. If your equipment uses one based
addressing, you will need to add one to the register addresses.)
Register addresses for T1R
Address for Temperature Channel on T1R
Zero Based
One Based
Temperature 62592 62593
