Rockwell-automation 1769-ASCII Compact I/O ASCII Module Manual de usuario descargar pdf (Pagina 72)

72 Rockwell Automation Publication 1769-UM012B-EN-P - January 2014

Chapter 3 I/O Memory Mapping

Alternate Mode (one channel

at a time) Output File

The alternate mode output file contains the real-time output data from the

module. This table shows the generic module tag definitions on the left. On the

right of the table is the 1769-ASCII module Add-On Profile configuration using

RSLogix 5000 software version 16 and later.

It is assumed that 16 bit words are used. The structure on the left is used with

varying data types; SINT, INT, BOOL and SINT array for data. The Add-On

Profile structures the module output, configuration and input tags differently.

With the Add-On Profile the configuration tags are rearranged as INTs.

The table shows the maximum size of the value and shows the maximum array

size for Alternate Mode.

Table 5 - Alternate Mode (one channel at a time) Output File

Bit Position

Add-On-Profile Tag

Name

Description

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Generic Module Tag Names

0 Reserved

(1)

Tx Transaction ID Ch0 Local:S:O.Ch0TxID

(2)

Transmit Transaction ID.

1 Reserved Rx Transaction ID Request Ch0 Local:S:O.Ch0RxID

(3)

Receive Transaction ID Request. Used with

Ch1RxID for handshake mode.

2 Reserved Tx Transaction ID Ch1 Local:S:O.Ch1TxID Transmit Transaction ID.

3 Reserved Rx Transaction ID Request Ch1 Local:S:O.Ch1RxID

(4)

Receive Transaction ID Request. Used with

Ch0RxID for handshake mode.

4 Reserved CNI Local:S:O.RxChNumber Channel number of requested input data.

This bit is set by the PLC controller or

other user program to tell the 1769-ASCII

module which data to produce.

This bit is set by the controller based on

the user program; same for all the words

in the Output data file

5 Reserved CNO Local:S:O.TxChNumber Channel number of the output data being

sent. This bit is set by the PLC controller or

other user program to tell the module

which port’s data is being sent to the

1769-ASCII module.

6Reserved

7 Length (Number of Bytes) Local:S:O.TxDataLength The amount of data being transmitted.

8 Character 1 Character 0 Local:S:O.TxData This defines the transmit ASCII character

for the tag.

9 Character 3 Character 2 Local:S:O.TxData

… Character … Character … Local:S:O.TxData

106 Character 197 Character 196 Local:S:O.TxData

107 Character 199 Character 198 Local:S:O.TxData

(1) Reserved is expected in 1st instance word 0.

(2) Tag name format is `Local:S:O’ where 'S' represents slot number.

(3) Used for handshaking mode.

(4) Used for handshaking mode.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 117 118

Comentarios a estos manuales

Sin comentarios

Rockwell-automation 1769-ASCII Compact I/O ASCII Module Manual de usuario Pagina 72

Comentarios a estos manuales

Relacionado con productos y manuales para Equipo Rockwell-automation 1769-ASCII Compact I/O ASCII Module