Rockwell-automation 57C620 AutoMax Programming Executive Version 3.8 Manual de usuario descargar pdf (Pagina 114)

7Ć2 AutoMax Programming Executive Version 3.x

Configurator. Local variables are defined only in the tasks that use

them.

Note:

Although the following modules themselves can be

added to the

rack, registers on these modules cannot be configured in the rack:

M/N 57C405

DCS Drive Analog I/O module

M/N 57C408

DCS Drive Power Module Interface module

M/N 57C440

Ethernet Network Interface module

M/N 61C605

8ĆChannel Thermocouple Input module

M/N 61C613

16ĆChannel Analog Input module

See 7.1.1 for more information on configuring I/O variables and 7.1.2

for configuring common memory variables.

7.1.1 Configuring I/O Variables

When you configure I/O or interface modules (except the Network

Interface) module, the register/point locations are displayed in the

form in numerical order. Assigning the name P_BUT

TON@ to bit 2 of

name P_BUTTON@ to the value stored in bit 2 of register 0, which is

physically connected to external hardware by way of a connector on

the module faceplate.

For

I/O modules with duplicate registers that indicate the same status

but

differ only in that the bits on one are chiefly R (readĆonly) and

bits

on the other are chiefly R/W (read/write) in the instruction manual,

you may configure only the bits that are read only in the read only

example is the 5V

Ć24V DC Input module (M/N 57C419). F

or this type

of register arrangement, R/W refers to the ability of the operating

system, not the application task, to write to that register.

Most I/O and interface modules are configured using the basic form

described

in 7.2.1.

Network Interface modules are configured using a

special form described in 7.2.3.

7.1.2 Configuring Common Memory Variables

The common memory variables in the rack are mapped to the

Common Memory module in slot 0 and Processor modules. These

variables are strictly memory variables and are not connected to

external hardware. There is no relationship between the way the

variables are displayed in the form on the screen and the way in

which they are stored. Common memory variables can be made

nonĆvolatile, i.e., their last value is preserved in the event of a power

outage, if the nonĆvolatile option is selected when they are being

configured. Note that the method by which common memory

variables

are stored and the form used to configure them are

unique.

See 7.2.2 for more information.

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