
D - 1
Appendix “D”
USB Diagnostic Codes
Model MG or DR USB Diagnostic Codes: Master Controls USB port
Note: You must install the Silabs CP210x USB driver on your windows PC. Check your Device
Manager for Silabs COM port#. You read the port at 230400 Baud 8N1
First or Second Pylon set Blocked
repeats when # of blocked beams changes
First or Second Pylon set Blocked during MUTE-OUT condition
First or Second Pylon set Cleared after a Block
First or Second Pylon set no Blocked beams during MUTE-OUT condition
Light Curtain in MUTE-OUT (Guard was GREEN before going into MUTE-OUT)
Light Curtain no longer in MUTE-OUT
Start & Stop ReWriting EEPROM
Should only happen 1
st
time programmed
Fault found active in EEPROM at Startup
Previously powered down with an
uncleared Fault
Scroll this string on LED display
Only RST F1 push can interrupt this
Version Display scroll finished
String on LED display
Then jmp to FAULT routine
Enter Fault() routine
x: 0=Slave in Fault() routine, 1=Slave not in Fault() routine
Writing to EEPROM new Fault code
Someone Hit RESET button while in a Fault
x & y: upper and lower bytes of Fault Code just cleared.
Return from Fault() routine
Return from Fault() routine
9 lines of 2 byte HEX showing the last 9 Fault Codes
Hold RESET button down at power-up
LED displays 9 fault codes
First Time return from FAULT()
One time after power-up only
Pylon length , performing SHORT LED test
Done with initial SHORT LED SCAN
If numbers appear without an F, then problems communicating with Slave
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