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Troubleshooting
278
372 SPU 780 01EMAN May 2002
4 (0010 Hex) S908 RIO Head
Failure or Remote I/
O option failed
Causes:
A failed S908 RIO board (replace the board)
Illegal board configuration in the 984 (e.g., the
wrong PROM pack)
Configuring for more than one drop and not
attaching anything to the S908
Cards contained in the Traffic Cop that are not
present in the field or cards in the field that
mismatch with the Traffic Cop.
Powering up an intelligent I/O card (B984) at the
same time as the 984
Attempting to start an HSBY system without the
S908 cards interconnected.
Cycling power on the controller may be
necessary to clear this error.
5 (0020 Hex) 984 A/B/X and 584
CPU Diagnostic
Failure
The CPU board is bad and should be replaced.
5 (0020 Hex) 984 -80 Series Bad
Coil Used Table
The coils existing in the logic do not match those
found in the used table.
6 (0040 Hex) Real Time Clock
Failure
The CPU board is bad and should be replaced.
7 (0080 Hex) Watchdog Time
Expired
This bit is usually set in conjunction with another. It
often signals a Data transfer program that is too
large. The logic is not being solved fast enough.
(0090 Hex) Real I/O Option
Failed
Check that the S908 card is properly installed and
that its ready light is on steady.
8 (0100 Hex) No EOL Detected or
Bad Number of
Segments
This error usually occurs when a startup is
attempted after the incomplete loading of a program.
Reload or try another program.
Note: You may receive this system error when you
first configure the system, before you have
programmed any logic. This is not a fatal error. The
system cannot find the end of logic because there is
no logic programmed from the primary to the
standby state.
9 (0200 Hex) 984 A/B/X and 584
State RAM Test
Failure
The continuously running diagnostics have failed.
Replace the RIO processor.
Bit Error Description