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ProtEX-MAX PD8-6200 Explosion-Proof Analog Input Rate/Totalizer Instruction Manual
50
Rounding Feature (
round
)
The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used
in addition to the filter function.
Rounding causes the display to round to the nearest value according the rounding selected. See
examples below:
Rounding
Selection
Actual
Value
Display
Value
Actual
Value
Display
Value
1
12.022 12.022 12.023 12.023
5
12.022 12.020 12.023 12.025
10
12.024 12.020 12.025 12.030
Modbus RTU Serial Communications (
serial
)
The meter is equipped with serial communications capability as a standard feature using Modbus RTU
Serial Communication Protocol.
The meter may be connected to a PC for initial configuration via the onboard micro USB connection. For
ongoing digital communications with a computer or other data terminal equipment, an RS-232, or RS-485
option is required; see
Ordering Information
on page 4 for details.
Warning!
Do not connect any equipment other than
Precision Digital’s expansion modules, cables, or
meters to the RJ45 M-LINK connector. Otherwise
damage will occur to the equipment and the
meter.
Note: More detailed instructions are provided with each optional serial communications adapter.
Note: Refer to the P
Modbus Register Tables located at www.predig.com for details.
When using more than one meter in a multi-drop mode, each meter must be provided with its own unique
address. The meter address (Slave ID) may be programmed between 1 and 247. The transmit delay may
be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.
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