Specifications

Control Properties
PlantScape Server and Client Configuration Guide 151
Control Properties for Analog Points
Low and High Control Limit for OP and SP
Use the Low Control Limit and High Control Limit fields to specify the lowest
and highest value that can be set for the OP or SP of this point.
These limits do not apply to the actual values that the controller is capable of
registering or controlling, only to the control limits set for performing supervisory
control with PlantScape.
Control Deadband for Analog Points
Use the Control Deadband field to specify a percentage value that is used in
determining what constitutes a good control.
This works as follows. If the PV signal, read back after an SP control is issued,
does not reach the following value within the period specified in the Control
Timeout field (as described in the following section), a “PV FAIL” alarm is
generated:
New SP Value ± Deadband Percentage
Property See…
Source Address and
Destination Address
See “Source and Destination Addresses” on page 144.
Scan Period See “Point Scanning” on page 145.
Setpoint (SP) See “Analog Setpoint (SP)” on page 130.
Output (OP) See “Analog Output (OP)” on page 129.
Mode (MD) See “Control Modes” on page 153.
Reverse Output See “Reverse Output” on page 154.
Control Confirmation See “Control Confirmation” on page 152.
Low Control Limit and High
Control Limit
See “Low and High Control Limit for OP and SP” on
page 151.
Control Deadband See “Control Deadband for Analog Points” on page 151.
Control Timeout See “Control Timeout for Analog Points” on page 152.
Control Level See “Control Level” on page 154.
Normal Mode See “Normal Mode” on page 153.
Disable mode checking on
output
See “Control Confirmation” on page 152.
plscpcg.book Page 151 Monday, May 28, 2001 10:11 AM