Setup guide

Chapter 3 Driver and Protocol Objects

Automationdirect.com 3-69 Object Reference Manual

types you are able to select the full range of device addresses and channels. So if you select

DO123.03, you need to be certain that the device at address 123 is in fact a discrete output

module.

For a more complete definition of the function of these data members, see FieldPoint

documentation.

Note

In the event of a power cycle to the FieldPoint device during use, the configuration

of the device reverts to some default state, which is configurable. You should keep in mind

that if the ranges you configured into the IAK file differ from those in the power-up

configuration, the scaling information imported from the IAK file and used as a

Lookout

Direct

alias might become outdated and incorrect after a power loss. To avoid this,

make certain your power-up configuration ranges and your IAK configuration ranges are

identical.

FieldPoint Multiple Discrete Data Members

These special purpose data members are for reading or writing a numeric

integer value to a set of discrete channels.

For instance, when you are configuring your modules with FieldPoint

Explorer, you have the option of selecting more than one discrete channel

for a data item that you are defining. If you do this and import the resulting

.IAK file into Lookout

Direct

for use as aliases, the aliases created will

correspond to this set of data members. You can then read and write to all

the discrete channels with a single numeric data member. The data member

names are in the form

MTTAAA.CCCC, where:

MIndicates multiple as opposed to single

TTTwo characters specifying module type (Discrete Out,

Discrete In)

AAA

Three numeric characters specifying module address

CCCCFour hexadecimal characters specifying which of

the 16 channels are included in this data member

Table 3-14. Multiple Discrete Data Members

Data Member Type Read Write Description

MDI000.0000 -

MDI255.FFFF

numeric yes no Multiple discrete input channels

MDO000.0000 -

MDO255.FFFF

numeric yes yes Multiple discrete output channels