91
Allocated CIO Area Words
Section 4-2
Word n+4 [n = CIO 1,500 + (25 x unit number)]
Bit Name Status Controlled
by
Unit operation
00 Unit error flag ON Unit The Unit error flag collects the status of all error flags in CIO Word n+4.
The bit flag is turned ON by the Unit if Bit 01, Bit 03, Bit 06, Bit 07, Bit 09
or Bit 13 in CIO Word n+4 is set to ON.
OFF Unit Bit 00 is turned OFF by the Unit if Bit 01, Bit 03, Bit 06, Bit 07, Bit 09 and
Bit 13 in CIO Word n+4 are set to OFF.
01 Master error flag ON Unit The Master error flag collects the error flags in the Master status 2
Word, i.e. CIO Word n+6. Master status word 2 contains all error flags
related to the PROFIBUS-DP Master functions.
Bit 01 is turned ON if any of the flags in Master status word 2, i.e. CIO
Word n+6 is set to ON, see
4-2-5 Master Status 2 (Word n+6)
.
OFF Unit Bit 01 is turned OFF if none of the flags in Master status word 2, i.e. CIO
Word n+6 is set to ON.
02 Reserved by sys-
tem
--- --- This bit will be set to OFF by the Unit.
03 Error log contains
new errors
ON Unit This bit indicates new errors in the error log since the last time the error
log was cleared or read. It is set to ON if the error log contains one or
more new errors.
OFF Unit The bit flag is set to OFF by the Unit if the error log is
•cleared using the ERROR LOG CLEAR FINS command, or
• read, using the ERROR LOG READ FINS command.
04 Parameter transfer
in progress
ON Unit The Parameter transfer in progress indicates transfer of Configuration
and setup data
•from the PC to the Unit’s internal volatile memory, or
• from the Unit’s internal volatile memory to non-volatile memory, or
• from the flash card to the Unit’s internal volatile memory.
During this transfer no other transfer of data can be started in parallel.
OFF Unit When set to OFF, this bit indicates that no Configuration data transfer is
in progress.
05 Reserved by sys-
tem
--- --- This bit will be set to OFF by the Unit.
06 Local parameter
storage error
ON Unit The local parameter storage error flag will be turned ON if an error
occurred during an attempt to write the Configuration and setup data to
internal non-volatile memory.
If the error occurred, the data in the non-volatile memory may be cor-
rupted and a new Configuration must be downloaded to the Unit.
OFF Unit When set to OFF, this bit indicates that the Configuration and setup
data has been transferred to the non-volatile memory successfully.
07 Local parameter
load error
ON Unit The Local parameter load error flag will be turned ON if an error
occurred during an attempt to transfer the Configuration and setup data
from non-volatile to volatile memory.
OFF Unit The flag will be turned OFF if a successful load attempt is made.
08 Reserved by sys-
tem
--- --- This bit will be set to OFF by the Unit.
09 File read error ON Unit The File read error flag will be turned ON if an error occurred during an
attempt to transfer the Configuration and setup data from a flash card in
the PLC CPU to the Unit’s non-volatile memory. The error can be
caused by an error in the File or an error during transfer.
OFF Unit The flag will be turned OFF if a successful load from flash card is made.
10
to
12
Reserved by sys-
tem
--- --- These bits will be set to OFF by the Unit.
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