Specifications

8 – Configuring Points
134 R400
Not all parameters need to be configured for a point. In many cases, the only
parameter of a point that needs to be configured is the PV which shows the
current value of a given location within a controller.
The following table summarizes these parameters.
Except for the PV parameter, the input/output point parameters listed in Table
8.1, “Summary of Point Parameter Types,” on page 134 can all be configured to
have a source address, or a destination address, or both. The PV parameter can
only be configured to have a source address, as it is used for the measured value
of some element of the process, such as a temperature, that cannot be changed
by the operator.
Summary of Internal Parameters
The following table shows the internal parameters for the point types status,
analog and accumulator (acc.).
Parameter Types Status Points Analog Points Accumulator
Points
SP (Set Point) ✔
PV (Process Variable) ✔✔✔
OP (Output) ✔✔
MD (Mode) ✔✔
A1 (Auxiliary #1) ✔
A2 (Auxiliary #2) ✔
A3 (Auxiliary #3) ✔
A4 (Auxiliary #4) ✔
Table 8.1 Summary of Point Parameter Types
Internal Parameter Description
ID Status Analog Acc.
PointID The name of the point. This name
identifies the point.
36
✔✔✔
Table 8.2 Internal Point Parameters
plscpcg.book Page 134 Monday, May 28, 2001 10:11 AM