Allen-Bradley 1738-ADNX Manual do Utilizador descarregar pdf (Página 61)

Publication 1768-UM001C-EN-P - November 2007

Configure and Monitor I/O 61

Address I/O Data

I/O information is presented as a set of tags.

• Each tag uses a structure of data. The structure depends on the specific

features of the I/O module.

• The name of the tags is based on the location of the I/O module in the

system.

An I/O address follows this format.

Location :Slot :Type .Member .SubMember .Bit

= Optional

I/O Address Components

Where Is

Location Network location

LOCAL = same chassis or DIN rail as the controller

ADAPTER_NAME = identifies remote communication adapter or bridge module

Slot Slot number of I/O module in its chassis or DIN rail

Type Type of data

I = input

O = output

C = configuration

S = status

Member Specific data from the I/O module, depending on what type of data the module can store

• For a digital module, a data member usually stores the input or output bit values

• For an analog module, a channel member (CH#) usually stores the data for a channel

Submember Specific data related to a member

Bit Specific point on a digital I/O module; depends on the size of the I/O module (0...31 for a 32-point module)

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 131 132

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Allen-Bradley 1738-ADNX Manual do Utilizador Página 61