4.8.36         .DESCR0

State 0 descriptor for a Discrete Tag.

Optionally, a Discrete or Digital tag can be displayed as a text descriptor, for example ON, OFF, True, False, Run, Stop, Auto, Manual, HOLD etc.

A DISCRETE TAG can have up to 8 states depending on how many BITS are read from the automation device. If three bits are read or written from the field device, 8 state descriptors can be used to display the 'State" of the tag's value.  If a single bit is read or written form the device, then only two state descriptors are used.

Length                   State Descriptors Used

                   1                  STATE 0 and STATE 1

                   2                  STATE 0, 1, 2, and STATE 3
3                  STATE 0 thru STATE 7

The value of the Tag read by calculation tags, accumulation tags, scripts, keymacros and user programs is always the integer representation (0 to 7).  The tag descriptor fields can be read scripts and user programs (DESCR0 to DESCR7).

Normally, engineers and technicians when creating the tag using Project Manager enter the STATE DESCRIPTORS.  The Descriptors can be edited in VIEW by users with security level 127.

Range:          13 alphanumeric characters
Field Type:    Text 
Tag fields:     .DESCR0

Syntax:         Tagname.DESCR0

Examples:      DI201.DESCR0


Range:                    12 alphanumeric characters
Field Type:            Text 
Tag fields:             .DESCR0  .DESCR1 .DESCR2 .DESCR3 .DESCR4 .DESCR5  DESCR6 .DESCR7