Rockwell Automation 2755-SNx Adaptascan Bar Code Readers - Manual (Page 68)

4–12 Downloading Match Codes via DH485 Protocol with an SLC 5/03
t
or SLC 5/04
t
Controller
Publication 2755-6.8
DH485 Master Mode
1. Click the Protocol Edit button in the Serial Port dialog.
2. Set the parameters as follows:
•
From the Master/Slave box, select Master
•
From the Destination Node box, select 1
This is the SLC node where the decoded bar codes are sent.
•
From the Maximum Node box, select 2
This is the number of nodes on the network.
•
From the N9:Offset box, select 100 which is the default
This is the SLC destination address where the decoded bar
codes are sent. N9: is reserved for communications. Bar code
data is sent as an ASCII string to the SLC N9 file.
•
From the Node box, select 2
This is the DH485 node address.
In this application the response in N9:100 will be 3F90 for a
successful match code download or 3F94 for a match code
download failure. (3F is the hexadecimal value of the
AdaptaScan device address 63. This will be different for a
different applied address.)
3. Click OK to return to the main Serial Port dialog.
4. Click Save and Close to return to the main Project dialog.