Rockwell Automation 1760-xxxx Pico Controller User Manual - Manual (Page 140)

Publication 1760-UM001D-EN-P - September 2005
6-8 Pico System Settings
Variable Parameters for Function Relays
You can modify the relay parameters used in the circuit diagram in
three different ways:
• All circuit diagram parameters can be adjusted in Stop mode via
the circuit diagram.
• Setpoints can be modified in Run mode via the circuit diagram.
• Setpoints can be modified via the PARAMETER menu.
The following setpoints can be modified
• The timer setpoints for timing relays
• The counter setpoints of counter relays
• The day and ON/OFF times of time switches
• The comparison setpoint of analog comparators.
In Run mode, Pico operates with a new setpoint as soon has it is
modified in the parameter display and saved.
Example: Modify Switching Times for Outside Lighting
The outside lighting of a building is automatically switched on from
19:00 to 23:30 (7:00 pm to 11:30 pm) Mondays to Fridays in the Pico
program.
The parameter set for the time switch function relay 1 is saved in
channel ’A’ and looks like this.
The outside lighting is now required to also turn on between 19:00
and 22:00 on Saturdays.
1. Select PARAMETER from the main menu.
The first parameter set is displayed.
2. Use up or down arrows to scroll through the parameter sets until
channel A of time switch 1 is displayed.
3. Press the up arrow to select the next empty parameter set, in this
case channel B of time switch 1.
The current time is 15:21.
MO-FR
15:21
19:00
23:30
D
+
ON
OFF
1 A
--
15:21
00:00
00:00
D
+
ON
OFF
1 B