The Interface Solution Experts
15
TMZ
PC-Programmable MODBUS
Temperature Transmitter
No of DPs in integer- This is a calculation that stores
a more accurate value in the MODBUS register and
offers better resolution. Select your value using the
up and down arrows to the right of the display. See
below for an example of this process.
Note:
Once you have configured all parameters, download
to the unit by selecting “Download” in the Transfer
dropdown menu located in the Status Bar. You may
also download by clicking the button in the
Tool Bar.
MODBUS
Figure 9.
MODBUS Tab
Communications–
Used to set MODBUS
Address, Baud Rate and Parity parameters.
Address- The number that the TMZ uses to identify
itself on the MODBUS network. It is configurable from
1 to 247. By default, the assigned MODBUS address
is 01.
Baud Rate- The speed of data transmission. It
should be set to match the baud rate of the attached
controller. Supported Baud Rates include: 300, 600,
1200, 2400, 4800, 9600, 19.2k and 38.4k. Factory
default is 9600.
Parity- A method in serial asynchronous
communications of “checking” that characters have
been sent correctly. Even, Odd and no Parity (None)
are supported. Factory default is None.
Data Format–
Allows you to select the word order
and number of decimal places you choose.
Selecting LSW (Normal), Least Significant Word,
stores the most signifcant bits in the second register
and the least significant bits in the first register (factory
default).
MSW (Reversed), Most Significant Word, reverses the
above order. The most significant bits will be stored in
the first register with the least significant bits stored in
the second register.
PV = 123.456789
"No of DPs in integer" Value
Displayed Integer
1
2
3
1234
12345
123456
