Watlow LogicPro - Manual (Page 207)

LogicPro User’s Guide Chapter 12: Function Blocks
Doc.# 28002-00 Rev 3.00 Watlow Anafaze 191
parameter number and its database offset. See Table 12.9 for
a description of this syntax.
Table 12.9 Address Syntax for Database Driver
The parameter number is a numeric identifier used to address a
closed-loop control parameter. Each parameter in the PPC-2000 has
a parameter number. See the Custom Interfacing chapter of the PPC-
2000 User’s Guide for a list of parameter numbers and descriptions.
The database offset is the location of a particular value relative to the
first value of that parameter. For example, each channel has a Heat
Proportional Band setting. If you want to set the Heat Proportion
Band for channel 9, the address will include the database offset 9.
Four types of parameters are accessed using the Database I/O driver:
Analog and Encoder Input, Channel, Digital I/O and Global. The
following sections describe how to determine the database offsets to
be used to access each of these types of parameters.
Channel Parameters
The database offsets associated with channel parameters are the
channel numbers. Refer to the PPC-2000 User's Guide for a
complete description of channel parameters and a list of channel
parameter numbers.
Analog, Count, and Frequency Input Parameters
The database offsets associated with analog, count and frequency
inputs are based on the order of the inputs in the database. Refer to
the Custom Interfacing chapter of the PPC-2000 User's Guide for a
complete description of input parameters and a list of input
parameter numbers.
Digital I/O Parameters
The database offsets associated with digital inputs and outputs are
based on the order of the digital I/O in the database. Refer to the
Custom Interfacing chapter of the PPC-2000 User's Guide for a
complete description of digital I/O parameters and a list of digital
I/O parameter numbers.
Global Parameters
Global parameter offsets are dependent on the global parameter.
Refer to the Custom Interfacing chapter of the PPC-2000 User's
Guide for a complete list of global parameter numbers and their
corresponding offsets.
Syntax Used with this IO Driver
#.D
# = Parameter Number
D = Database Offset Database