
B-63404EN/03 OPERATION 1.DeviceNet FUNCTIONS
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Setting the status information storage area
Status information is assigned sequentially starting at the signal in the
specified R area.
For example, to assign four bytes of status information from R1500
onwards, set each of the data items as follows in screen 1-5.
4 STATUS ADDRESS = R1500
5 STATUS SIZE = 4
Status information is assigned to R area signals as follows according
to this setting.
Status Information Assignments
R1500 STATUS
R1501 IDLE/ACTIVE
R1502 Status
R1503 Error
On the PMC, start communications using this status information. Also
use this status information to process on the PMC any
communications errors that may occur.
The error status of this status information is returned to the normal
communications status when the cause of the error is removed. So, if
the error status must be held, perform this operation on the PMC.
CAUTION
When you set the assignment data, carefully set the
data so that areas to be secured as data do not
duplicate areas that are currently used for ladder
programs on the PMC.