Rockwell Automation 2755-SNx Adaptascan Bar Code Readers User Manual

Page 79

Advertising
background image

4–23

Downloading Match Codes via DH485 Protocol with an SLC 5/03

t

or SLC 5/04

t

Controller

Publication 2755-6.8

Message Instruction Configurations

For the first Message Instruction, the configuration is listed in the
table below.

Parameter

Configuration

Type

Peer-to-Peer

Read/Write

Write

Target Device

485CIF

Local/Remote

Local

Control Block

N7:200

Channel

0

Target Node

2

Destination File Access

N7:90

Target Offset

255 (Change 255 to 256 or 100H in the third word of the
Control Block. An offset greater than 255 tells the MSG
instruction that the SLC controller is talking to a bar code
device.)

Message Length in Elements

10

Message Timeout (seconds)

10

For the second Message Instruction, the configuration is listed in the
table below.

Parameter

Configuration

Type

Peer-to-Peer

Read/Write

Read

Target Device

485CIF

Local/Remote

Local

Control Block

N7:50

Channel

0

Target Node

2

Destination File Access

N7:80

Target Offset

255 (Change 255 to 256 or 100H in the third word of the
Control Block. An offset greater than 255 tells the MSG
instruction that the SLC controller is talking to a bar code
device.)

Message Length in Elements

2

Message Timeout (seconds)

0

Advertising