Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 857)

Error and System Messages
Section 16
16-37
Message Description
REMOTE I/O MISSING USER OPERATIONAL CODE The RIO module did not detect the user operational code after reset. This fault is displayed
when the RIO module does not detect the user operational code in the user status register in
common RAM within 100ms after the RIO module has set its operational code and released
control of common RAM back to the user device. The Interboard Communications Fault LED is
turned ON.
REMOTE I/O RIO DENIED COMMON RAM ACCESS The RIO module was denied access to CRAM for longer than the specified interval. The RIO
module failed to gain access to common RAM after attempting for the Accessing Time-out time
period. The time-out is due to either the user device maintaining access for more than the
Accessing Time-out interval. or to a hardware failure. The Interboard Communications Fault
LED is turned ON.
REMOTE I/O SERIAL COMMUNICATIONS FAULT The RIO module cannot communicate with the PLC processor. Either the PLC processor’s
power is OFF, the blue hose is not connected, or the PLC processor is in Edit mode.
REMOTE I/O SIO CHIP TEST FAULT The RIO module tests the SIO chip after reset and detects a fault. The processor fault LED is
turned ON.
REMOTE I/O UNABLE TO FIND BT DATA BUFFER The RIO module was unable to detect the user block transfer data buffer. The interboard
communications fault LED is turned ON.
REMOTE I/O UNRECOVERABLE ERROR Remote I/O hardware or network has catastrophic failure. Cycle power to try to restart or check
remote I/O hardware (9/920 only).
REMOTE I/O USER FAULT OCCURRED The RIO module detected that the user fault bit was set. The interboard communications fault
LED is flashing.
REMOTE I/O WATCHDOG TIMEOUT The watchdog mechanism on the RIO module timed out, indicating that the RIO module has not
operated in an expected manner for possibly 17ms. The processor fault LED is turned ON.
REMOTE IO INTERPROCESSOR HANDSHAKE FAULT The RIO module failed to detect the complement of the user-handshake word, in the
complement user-handshake word in common RAM, within the handshake interval. The user
device has not shook hands with the RIO module. The interboard communications fault LED is
flashing.
REPLACE ABSOLUTE FB BATTERY The battery that attaches to the servo module and supplies power for the absolute encoders is
under-voltage and must be replaced.
REPLACE MEMORY BACKUP BATTERY The battery that attaches to the main processor board and supplies power for the control’s RAM
memory is under-voltage and must be replaced. If not replaced, AMP data cannot be copied to
backup memory and part program data may be lost.
REQUESTED DATA TOO LARGE The data you are trying to send or receive is too large.
REQUIRES AT LEAST TWO AXES A transfer line quick view prompt was selected for a cycle which requires two or more axes.
Your system is currently configured as a single axis system.
RESETTING E--STOP Once you push the E--Stop Reset button to clear the E--Stop state, the Resetting E--Stop
message displays to alert you that the control is attempting to come out of E--Stop. After the
system is out of E--Stop and the drives are enabled, the control clears this message. If the error
condition is not cleared, this message clears, but the “E--STOP”message continues to flash as
the control remains in E--Stop state.
RETRACE NOT ALLOWED A retrace is not allowed from the point in program execution.
RIGHT OPERAND MUST BE POSITIVE The right operand of a logical operator must be a positive value. Negative values are illegal; for
example, 1AND--2 is illegal because of the --2.
RING I/O RECOVERY DISABLED This message is activated when the {RECVRY DISABL} softkey is pressed on the I/O RING
MONITOR page. It is a visual indicator that the operator has disabled the I/O Ring retry
functionality.
RIO COMMON RAM ACCESS NOT ACKNOWLEDGED The control’s request to use the RIO module was denied. The RIO module lost power, or the
control was restarted, but the RIO module was not.
ROLLOVER/OVERTRAVEL INCOMPATIBLE Overtravel limits were specified in AMP for an axis that is configured as a rollover axis. Rollover
axes do not have overtravel limits.
ROTARY AXIS CANNOT BE SCALED A rotary axis cannot be scaled.