Pulsafeeder Pulsar DLC - Manual (Page 63)

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Analog Mode Set Up Procedure
1. Press [MENU] once and then [UP] or [DOWN] until the screen {–MENU– / ANALOG MODE} is
displayed.
-MENU-
ANALOG MODE
Press [ENTER] to continue to program the Analog Mode sub-menu.
2. The {ANALOG MODE / ACTIVE} screen is displayed.
ANALOG MODE
ACTIVE
Press [ENTER] to accept the default value.
If you want the analog mode to be inactive and {ACTIVE} is displayed, press [UP] to change the
display to {INACTIVE}. Press [ENTER] to accept your selection. Go to step 12.
3. The {SAMPLE SIZE / XXX} screen is displayed.
SAMPLE SIZE
XXX
Press [UP] or [DOWN] to set the number of samples taken from the 4-20mA input to average. The
DLC will adjust its output in accordance with the average of the number of samples you set here. Enter
a value in the range of 1 to 100 samples using the [UP] or [DOWN] key(s).
Press [ENTER] to accept the entry.
Increase the number of samples to smooth out a noisy input. Decrease the number of samples to
cause the DLC to track a rapidly changing signal more closely.
4. The {UPDATE EVERY / XXX SAMPLES} screen is displayed. Press [UP] or [DOWN] to set how
often the DLC will adjust to the current average value. The default value (20) causes the DLC to adjust
every 20 samples or every 5 seconds (20 * 0.25 = 5). You may enter a value in the range of 1 to 100
using the [UP] or [DOWN] key(s).
Decrease the value to better follow a rapidly changing signal.
UPDATE EVERY
XXX SAMPLES
5. Press [ENTER] to accept your selection.
6. The {–MENU– / ANALOG MODE} screen is displayed.
7.2.14 MODBUS Mode
Use the MODBUS mode setting to activate or de-activate the DLC’s ability to support a MODBUS
serial signal. If deactivated, the MODBUS mode will not appear when [MODE] is pressed. If you are
not using the serial input (i.e., you have made no connections to J7 or J8) but have the MODBUS mode
set to active, then any time you mistakenly press [MODE], by default the DLC will generate a
{MODBUS SIGNAL FAILURE} alarm. De-activating MODBUS mode prevents this.
The [MODE] key allows you to select an operating mode. It acts as a master switch allowing you to
select what signal controls the DLC. It does not inhibit MODBUS communications. It only inhibits
MODBUS commands that pertain to the operation (e.g., you cannot turn the pump motor on using
MODBUS unless the mode is set to MODBUS).