Serial Communications (Comm); Standby Mode (Standby) - YOKOGAWA YPP6830-AP0-0 Instruction Manual

YPP6830 Explosion-Proof Pulse Input Rate/Totalizer
Battery Power Symbol Alert
(BAT SYM)
The Battery Power Symbol Alert menu is used to
enable or disable the battery alert symbol on the
display. This is a useful way to be aware of a power
failure to a model with battery backup.
When enabled, the battery symbol will appear
whenever the meter is powered as a battery backup.
This is detected when the meter being powered from
DC or loop-power experiences power loss,
subsequently switching over to battery power.
The indicator will not appear if the meter is powered
on via battery power, only when there is applied
power to the DC or loop-power lines, followed by
power loss. This prevents the battery indicator from
appearing at all times for a primarily battery powered
application.
The battery symbol will flash in a low battery condition
regardless of the setting of this parameter.
Information (INFO)
The Information menu is part of the System features
menu. It shows software identification number,
version number, and extended model number. To
view this information:
Go to the Information menu (INFO) and press Enter
button.
Continue pressing Enter to scroll through the
displays.
Following the information display, the meter will exit
the Advanced features menu and return to Run Mode.

Serial Communications (COMM)

The Communications menu is used to setup serial
communications parameters necessary for
communication via Modbus.
The Modbus communications uses a 2-wire plus ground
RS-485 connection with the Modbus RTU option.
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 baud rate
may be set to 1,200; 2,400; 4,800; 9,600; 19,200;
38,400; 57,600; or 115,200 bps. 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.
Refer to the YPP6830 Modbus Register Tables
located at www.yokogawa.com/us

Standby Mode (STANDBY)

Standby mode is available on battery powered and
battery backup models only.
The Standby menu is used to enter a power-saving
standby mode that will turn off the display and
activate a low power mode for the through-glass
buttons. Signal processing operations will continue to
run. This mode may be used to reduce power
consumption and increase battery life when the meter
is not in use.
It may take up to 3 seconds for the meter to enter
standby mode after confirming the flashing display
with the Enter button.
Wakeup the Meter (WAKEUP?)
To bring the meter out of standby mode, press any
button and Wakeup (WAKEUP?) will flash. If using
SafeTouch buttons, it may be required to hold the
button for several seconds.
Confirm that the meter should awaken to Run Mode
by pressing the Enter key while WAKEUP? is flashing.
The meter will return to the normal Run Mode.
45
Instruction Manual
for details.