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Model BD306 Dual-Input Pump Controller Instruction Manual
7.13.4.
Modbus RTU Serial Communications (
SEr iAL
)
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 2 for details.
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WARNING!
Do not connect any equipment other than Blue Ribbon’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 BULLDOG Modbus Register Tables located at
www.blueribboncorp.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.
The meter can also be connected to a similar meter with a special BDCCC cable, allowing the
user to copy all the settings from one meter to another, using the
Copy function.
7.13.5.
Select Menu (
SELEct
)
The
Select menu is used to select the signal input conditioning function applied to the inputs (lin-
ear, 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.
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