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4Ć171Target Data Configuration

Original Ć June 1990 CE4.2:CL6211

Current? Ċ This field is set to YES if the device specified by the

configuration Device on the same row is in the current target device

group. A target device group is composed of all of the PROVUEs,

controllers, and CHIPs that have the same Reporting Mode, Sample

Interval and Dead zone, and within the device type have the same field

values (other than DBI or index values). A target device group may

consist of up to 32 devices.

Generally, if YES appears next to a device in the Device field on any set

of the targeting forms, then the data currently displayed applies to that

device. Any change to a target value affects all devices in the Device

field marked as YES. This is a readĆonly field, which was defined on the

TARGET DATA form.

Device Ċ This refers to the name of the device to which the point is to

be targeted. This is a scrolled list of all the devices to which the point is

being targeted.

Deadzone Ċ Identifies the amount, in percent of span, by which an

analog value must change since it was last reported before the value will

be transmitted over the highway if the Reporting Mode is set to

Exception. Valid entries for this field are 0.03124, 0.0625, 0.125, 0.25,

0,5, 1, 2, and 4.

Index Ċ This is the numeric value given to this point in the target device.

This is called DBI for PROVUE, Relative DBI in the UOC/IFC, and DBI in

CHIP.

PPA Ċ Identifies the Plant Process Area (PPA) that this point is to be a

member of. This point should be placed into a PPA with other points that

are to use the same alarm strategy. All points in the PPA will be grouped

into the same Plant Management Areas (PMAs).

Reporting Mode Ċ Determines, along with the DEADZONE and

SAMPLE INTERVAL, how often (frequently) a particular point will send

data over the highway to the devices in the current target group. Valid

choices for this field are:

H CHANGE OF STATE Ċ ChangeĆofĆState reporting communicates the

point's operating data immediately if an alarm state has changed, without

waiting for the end of a point's Sample Interval.

H PERIODIC Ċ Periodic reporting communicates the point's operating

data at the end of its Sample Interval regardless of whether any of the

point's operating parameters has changed by more than the Dead zone

value.

H EXCEPTION Ċ Exception reporting communicates the point's operating

data at the end of its Sample Interval if one of the point's operating

parameters has changed by more than the Dead zone value, or if the

point's refresh period has transpired.

BACKGROUND and EXCEPTION, NO REFRESH are not valid.

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Response Electronics CL6011B Specifiche Pagina 253

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