Toshiba V Series User Manual page 177

E.2 Tag Variables (PL, LP, PB)
Details of tag variables are described below.
About explanation items in the table
Item name ☆ indicates data used for Tool only (parameters not downloaded to the
Description • indicates input condition. Only the one that satisfies all conditions can be
DSP
E.2.1 Indicator Variables (PV_PARA, PV_DATA)
[Indicator variable] is used to register interface signals such as process sensors or other
standard processing and instrument indication data. The registered data here defines the
controller's standard input processing. Meaning of each item and input conditions are
explained below.
(1) Parameter (PV_PARA)
Item name Abbr.
Tag No TAG Tag No assigned to an instrument as ID No. Using this Tag No, each
instrument can be accessed by tag variable from program.
• Alphabet, numbers and an underline. The first one must be an
alphabet. 16 characters or less.
• Must not be duplicated in the same system. Must not be any of
reserved words of the system. Uppercase characters and lowercase
characters are treated in the same way. All are converted to
uppercase characters.
Tag name NAME Comment data to be attached to Tag
• 30 characters or less
Instrument RH This is a high limit value for indicator range. The unit for this value is
range high registered in the engineering unit section.
• RL < RH
Instrument RL This is a low limit value for indicator range. The unit for this value is
range low registered in the engineering unit section.
• RL < RH
6F8C1135
controller). This data does not affect the controller's execution but since there
are items useful when document is printed, set items when needed.
input.
Display / operation on the Side display (
Description
E.2 Tag Variables (PL, LP, PB)
: Yes / : No)
Data type
[unit]
TEXT
TEXT
REAL
[EU]
REAL
[EU]
DSP
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