Macurco DVP-120 User Instructions page 38

Error Codes
Solid RED - The MRS-485 detected an error and no MODBUS communications are in progress.
RED with random bursts of AMBER - The MRS-485 detected an error and AMBER is displayed when data are received or transmitted
over the RS-485 line.
There are a number of conditions which are signalized in this way:
- Current EEPROM Settings not initialized
- Current EEPROM Settings have bad checksum
- Factory EEPROM Settings not initialized
- Factory EEPROM Settings have bad checksum
- Unknown Sensor exponent value
- Watchdog reset
- Loaded Factory EEPROM Settings in EEPROM Current Settings
- Latched sensor type different than registered sensor type
- Unknown sensor type because registration failed
Dip Switch Settings Codes
RED/GREEN Alternating every 200 milliseconds indicates that MRS-485 is in programming mode and waiting for user to enter new
settings using the 8 switches.
RED/OFF Alternating every 200 milliseconds indicates that saving new settings failed.
GREEN/OFF Alternating every 200 milliseconds indicates that saving new settings passed.
RED/OFF Alternating every 500 milliseconds indicates that selected MODBUS address is not an accepted value.
38