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AN-X-DCSNet2 November 2011

Scheduled Data with a ControlLogix

AN-X-DCSNet2 exchanges scheduled data with a ControlLogix

processor.

It supports:

• up to 16 scheduled connections

• up to 248 registers of ControlLogix output data per connection

• up to 250 registers of ControlLogix input data per connection

The ControlLogix processor sends its output data to the AN-X-DCSNet2

and the AN-X sends it out on the DCS network. You create a

configuration file to define how the ControlLogix data is mapped to

DCSNet registers.

If the AN-X is a DCS master, allowed output data includes registers 32

to 39 on drop 0 (broadcast data) and registers 32 to 63 on drops 1 to 55.

If the AN-X is a DCS slave, allowed output data includes registers 0 to

31 on any drops (1 to 55) that are included in the AN-X drop number

and drop depth.

The AN-X sends input data to the ControlLogix. The configuration file

defines how DCSnet data is mapped to ControlLogix input data. There

are no restrictions on which DCS registers can be mapped to

ControlLogix input data.

In addition, you can also map connection statistics to ControlLogix

inputs.

You define data mappings in a comma-separated text file and use the

AN-X web interface to send the mapping file to the AN-X.

Connections

There are two possible types of scheduled connections from the

ControlLogix processor to the AN-X-DCSNet:

• Exclusive owner connection, which contains input and output data

• Input-only connection, which contains input data

Only the exclusive owner connection can write data to AN-X and to

DCSNet.

There can be only one exclusive owner connection to an AN-X module.

In general, you should try to keep the number of connections small.

There is significant overhead in opening and maintaining each

connection.

Configuration

To configure the scheduled data exchange:

1. Configure AN-X in RSLogix 5000

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Prosoft-technology AN-X-AMX Manual de usuario Pagina 26