Yokogawa digitalYEWFLO (DY-FF) - Manual (Page 157)

A11-4
IM 01F06F00-01EN
A11.7 Troubleshooting
For information on the download tool’s error messages, see also the software’s User’s Manual.
Table A11.2 Problems after Software Update
Symptom Cause Remedy
An error occurs before starting a
download, disabling the download. The selected download fi le is not for the
selected fi eld device. Check SOFTDWN_ERROR in the resource
block and obtain the correct fi le.
An error occurs after starting a
download, disabling the download. You attempted to update the device revision by
downloading a fi le which is not an original fi le. Check SOFTDWN_ERROR in the resource
block and obtain the original fi le.
The selected fi eld device does not support
software downloading. Check whether the option code /EE is included
in the model and suffi x codes of the device.
The voltage on the fi eldbus segment falls below
the specifi ed limit (9 volts). Check the capacity of the fi eld bus power
supply used and the voltage at the terminal.
There was an error in a checksum or the
number of transmission bytes. Check SOFTDWN_ERROR in the resource
block and obtain the correct fi le.
The download tool does not allow download
with same software revision. Check the setting of the download tool.
The download takes far longer than
expected or fails frequently. The fi eldbus segment is noisy. Check the noise level on the fi eldbus segment.
An error occurs after activation. Transient error caused by the internal resetting
of the fi eld device Check whether communication with the fi eld
device has recovered after a while.
The new software does not work after
the activation. The fi le of the current revision was downloaded. Obtain the correct fi le.
Failure of the memory in fi eld device, etc.
Check SOFTDWN_ERROR in the resource
block, and re-try downloading.
If fails, place a service call.
A11.8 Resource Block’s Parameters Relating to Software Download
Table A11.3 Additional Parameters of Resource Block
Relative
Index
Index Parameter Name
Default
(Factory Set)
Write
Mode
Description
53 1053 SOFTDWN_
PROTECT 0x01 AUTO Defi nes whether to accept software downloads.
0x01: Unprotected
0x02: Protected
54 1054 SOFTDWN_
FORMAT 0x01 AUTO Selects the software download method.
0x01: Standard
55 1055 SOFTDWN_COUNT 0 — Indicates the number of times the internal FlashROM was
erased.
56 1056 SOFTDWN_ACT_
AREA 0 — Indicates the ROM number of the currently working
FlashROM.
0: FlashROM #0 working
1: FlashROM #1 working
57 1057 SOFTDWN_MOD_
REV 1, 0, 0, 0, 0, 0,
0, 0, 0 — Indicates the software module revision.
58 1058 SOFTDWN_ERROR 0 — Indicates an error during a software download. Refer to Table
A11.4 for error codes.