C&S Controls LaserLight 2 Series, Technical Manual, Page: 26 / 37

Configuration 23
3.6 Testing the Remote Display
The LaserLight2 remote display provides tests to check the hardware of the remote display. The tests can be
accessed through the main menu.
Figure 3-5. Test Menu Choices
3.6.1 Display
In the display test, all LEDs are illuminated and remain lit until is pressed.
3.6.2 Digital Outputs
This test provides a way to view the different states of the digital outputs or the stop/go option if installed. Use the
left and right arrows to increment/decrement and display each of the states which are digital values of the two
ports. On/Off terminology includes:
• Low (L) = ON = 0 V
• High (H) = OFF = +5 V
Table 3-7. Digital Output States
See Figure 2-5 on page 9 for plug positions.
Press the right button again to display LL and the stop/go option displays no light at all.
Press the right button again to display LH and the stop/go option displays a green arrow.
Press the right button again to display HL and the stop/go option displays a green circle.
Press the right button again to display HH and the stop/go option displays a red circle.
3.6.3 Digital Inputs
The digital input test displays the current values read from the digital inputs.
3.6.4 Loop Back
This test provides a loop-back self test for use in diagnosing serial communications errors. The loop-back self test
checks the function of the remote display serial port by sending and receiving data to itself. The following
illustration shows the required connections.
If Port 1 receives nothing from Port 0 for three seconds,
Fail 1
displays.
If Port 0 receives nothing from Port 1 for three seconds,
Fail 2
displays.
If communications are successful between the two,
Pass
displays.
Digital Out 1
J1 - 6
Digital Out 0
J1 - 5 Stop/Go Signal
L L Off
L H Green Arrow On
H L Green Circle On
H H Red Stop
CONFIG
SERIAL TEST
VER
DISPLY LOOP BK DIGOUT DIGIN
LL-OFF
LH-grn arrow HL-grn circle
HH-red circle
XX
ENTER
Port 0 TR Port 1 RCV
Port 1 TR Port 0 RCV