MICRONOR AG
MR340-1 DIN Rail Module Controller
Page 54 of 74
Error Groups
All errors get logged but may not necessarily provide visual indication. The user should take
necessary action based on the severity level of the reported status/error.
3 = System will no longer work without a remedy.
2 = Important, problem should be fixed but system may still be partially operational
1 = Benign, system keeps on working
After examination the user may clear the Error Indication by issuing the Function Call FC5 to
coil number 5. This will clear the indicated error in the Status byte. If there are more errors
stacked up, then the next highest priority will be displayed.
Some errors are cleared as soon as normal operation is established. For instance, when the
sensor is disconnected or a high loss in the optical connection occurs, an error is reported and
the PWR LED will blink. When the optical connection is re-established, then the error will clear
itself without user interaction.
Some errors are not sufficient cause of a problem. They are logged and indicated by a short
blink on the PWR LED and then will clear themselves.
850n
980n
850n
980n
VCSEL
DRIVER
Amplifier A
Amplifier B
µProcessor
A
B
Serial
Gain/Offset
VCSEL CTRL
Signal
Detection
Status
RST
EEPROM
Power
Supply
Group 3
Group 4
Group 1
Group 2