Master Status 1 (Word N+12) - Omron CS1W-DRM21 Operation Manual

Allocated CIO Area Words
3-2-7

Master Status 1 (Word n+12)

Word n+12 [n = CIO 1,500 + (25 x unit number)]
Bit Name Status
00 Verification ON
Error Flag
OFF
01 Structure ON
Error Flag
OFF
02 Remote I/O ON
Communica-
tions Error
Flag
OFF
03 Reserved by ---
system
04 Invalid Scan ON
List Data
Flag
OFF
05 Remote I/O ON
Refresh
Error Flag
OFF
06 Reserved by ---
to system
07
08 Master ON
Function
Enable/
Disable
Failed Flag
OFF
09 User ON
Allocation
Area Setting
Failed Flag
OFF
Controlled
by
Unit Indicates that the data in the slave registered in the scan list is different
from the data from the actual slave. It occurs with the scan list enabled.
Unit Indicates that a verification error has not occurred or turns OFF when a
verification error is cleared.
Unit Indicates that I/O allocations cannot be made with the scan list disabled.
Unit Indicates that a structure error has not occurred or turns OFF when a
structure error is cleared.
Unit Indicates that a remote I/O communications timeout has occurred during
remote I/O communications with slaves.
Remote I/O communications will stop if DIP switch pin 3 (remote I/O com-
munications stop/continue setting for communications errors) on the front
panel is ON (stop).
This error occurs with the scan list enabled or disabled.
Unit Indicates that a remote I/O communications error has not occurred or
turns OFF when a remote I/O communications error is cleared.
--- ---
Unit Indicates that there is incorrect data in the scan list (mismatched check-
sum). Remote I/O communications in the Unit will stop. (Slave operations
and message communications will continue.)
Unit Indicates that the scan list data is correct.
Turns OFF when an incorrect scan list data error occurs and then the cor-
rect scan list is registered.
Unit Indicates that the I/O memory in the CPU Unit that is to be refreshed is not
present during I/O refreshing for the master. It occurs in several situations,
such as when an I/O area is allocated in an EM bank that is not present.
Unit Indicates that no master I/O refresh errors have occurred.
--- ---
Unit Indicates that an error has occurred in one of the following operations:
• Master enable (word n, bit 06)
• Master stop (word n, bit 07)
Once this bit turns ON, it will remain ON until the operation is successfully
completed.
Unit Indicates that the error has not occurred. The bit turns OFF when the
operation is successfully completed.
Unit Indicates that an error has occurred in one of the following operations:
• Master user-set allocations user setting (word n, bit 11)
Once this bit turns ON, it will remain ON until the operation is successfully
completed.
Details on the master user-set allocation results are output to the Master
User Allocations Setup Table.
Unit Indicates that the error has not occurred. The bit turns OFF when the
operation is successfully completed.
Unit operation
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