Precision Digital PD6060 - Manual (Page 72)

Model PD6060 Dual-Input Process Meter Instruction Manual
72
Modbus RTU Serial Communications (serial)
The meter is equipped with serial communications capability as a
standard feature using Modbus RTU Serial Communication Protocol.
To communicate with a computer or other data terminal equipment, an
RS-232 or RS-485 adapter option is required; see Ordering Information
on page 7 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 ProVu
®
Modbus Register Tables located at
www.predig.com for details.
baud
Serial
SlavId
Serial
tr dly
Serial
serial
t-byt
Serial
Parity
Serial
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.
The meter can also be connected to similar meter with a special
PDA1200 cable, allowing the user to copy all the settings from one
meter to another, using the Copy function.
Select Menu (SElect)
The Select menu is used to select the signal input conditioning function
applied to the inputs (linear, square root, programmable exponent, or
round horizontal tank), math function for A & B, constants, low-flow
cutoff, and analog output programming. The multi-point linearization is
part of the linear function selection.