Appendix “D”
USB Diagnostic Codes
Model MG or DR USB Diagnostic Codes: Master Controls USB port
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 115200 Baud 8N1
D-1
Microguard MG or DR USB Diagnostics Codes:
Master controls USB port
Char Description
First or Second Pylon set Blocked
repeats when # of blocked beams changes
M or m First or Second Pylon set Blocked during MUTE-OUT condition Guard stays GREEN
First or Second Pylon set Cleared after a Block
E or e First or Second Pylon set no Blocked beams during MUTE-OUT condition
K Light Curtain in MUTE-OUT (Guard was GREEN before going into MUTE-OUT)
Light Curtain no longer in MUTE-OUT
S Check EEPROM
Start & Stop ReWriting EEPROM
Should only happen 1
st
time programmed
Q Fault found active in EEPROM at Startup Previously powered down with an
uncleared Fault
E AutoBlank load Should always see this
“Soft Ver= R34r.1012.MG” Scroll this string on LED display
Only RST F1 push can interrupt this
M Version Display scroll finished
String on LED display
Then jmp to FAULT routine
Fx Enter Fault() routine
x: 0=Slave in Fault() routine, 1=Slave not in Fault() routine
Should be F0
W Writing to EEPROM new Fault code
Someone Hit RESET button while in a Fault
x y x & y: upper and lower bytes of Fault Code just cleared. Displayed in HEX
Return from Fault() routine
P<cr> Return from Fault() routine First time returning
0
1
.
9
9 lines of 2 byte HEX showing the last 9 Fault Codes First to Last
Hold RESET button down at power-up
LED displays 9 fault codes
p End of Fault
First Time return from FAULT()
A Run Initial pylon TEST One time after power-up only
Pylon length , performing SHORT LED test
“Wait” Done with initial SHORT LED SCAN
x* If numbers appear without an F, then problems communicating with Slave
g Bad Auto Blank memory
See page D-2 for instructions.
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