Yokogawa EJX438B - Manual (Page 51)

<7. Setting Parameters>
7-17
IM 01C27H01-01EN
7.3.3 Parameters for Wireless
Communication
(1) Network Information
Concentrator object block : Configuration
Allows confirming the network information.
(2) Update Time
CO block : Data publication period
Sets the update time value to 0.5 to 3,600 seconds.
When amplifier housing code 7 is specified, note
that more than one second is available.
When update time is set 0 seconds, the transmitter
is stopped to update process variables by way
of the field wireless network. And the transmitter
continues to measure process variables with
special interval time internally.
(3) Measurement Mode
TRANSDUCER block : Measurement Mode
The setting affects the battery life; it becomes
shorter in the continuous mode.
When the update period is set to 1 second or less
in intermittent mode, the mode is automatically
switched to continuous mode. When the update
period is 1 second, the mode is continuous mode,
regardless of the measurement mode.
(4) Measurement Rate
TRANSDUCER block: Measurement Rate
Reads the measurement rate value from 0.5 to
3600 seconds. When amplifier housing code 7
is specified, note that the period more than one
second is displayed. The shorter the measurement
period, the shorter the battery life.
(5) Remaining battery life
UAPMO block: Energy Left
The number of days of remaining battery life is
indicated assuming that a transmitter has been
working under ambient temperature condition as
23 degrees Celsius. It takes several days for the
indicated value to be stabiilzed after the power on
and initialization of the remaining battery life.
UAPMO block: Reset Energy Left
When changing batteries, the remaining battery life
is initialized by Reset Energy Left parameter.
(6) LCD display
The following steps describe how to set LCD
display.
● Integral antenna type (Amplifier housing
code: 7)
1. On/Off of display
When “LCD Intermittent” in LCD Mode is
parameter is selected, the LCD first displays a
set of screens to be shown and then turns off
for a minute, and the display keeps the cycle
repeatedly. Not selecting this parameter turns
the LCD off.
2. On/Off of continuous display mode
When “LCD Continue” in LCD Mode is
selected, the LCD displays for 5 minutes
continuously then transits to the setting in the
LCD Intermittent.
When measurement mode is set as continuous
mode, the LCD displays continuously
regardless of display mode.
When the update time is set to 1 second, the
LCD display stays on regardless of the status in
LCD Mode.
3. On/Off of bar graph
Select “LCD Bargraph ON” in LCD Mode when
the bar graph is required.
● Detachable antenna type (Amplifier housing
code: 8 or 9)
1. On/Off of display
When “Enable” in LCD Mode is selected, the
LCD displays a set of screens to be shown and
turns off for the specified time based on LCD
Intermittent Time, and the display keeps the
cycle repeatedly. Not selecting this parameter
turns the LCD off.
2. On/Off of continuous display mode
When “Enable” is set to LCD Mode and zero is
set to LCD Intermittent Time, the LCD displays
continuously.
3. On/Off of bar graph
Select “LCD Bargraph ON” in LCD Mode when
the bar graph is required.
When the wireless connection process is in the
status of “ready,” “pause,” or “join,” the LCD display
stays on regardless of the status in LCD Mode.