ASCII Protocol
PLX3x Series ♦ Multi-Protocol Gateways
User Manual
Page 142 of 215
ProSoft Technology, Inc.
January 25, 2018
8.2
ASCII Configuration
The ASCII driver requires that a minimum amount of configuration data must be
transferred to the PLX3x gateway from the gateway's file system. Take care
when configuring the module parameters. If the module does not function as
expected, examine the configuration file using the Debugger Port on the module.
All configuration parameters for the driver are found under the [ASCII Port x]
section. The x in the section name will have a value of 0 to 3 corresponding to
the appropriate ASCII port. See Diagnostics and Troubleshooting (page 31).
After you set up the configuration file, download it to the module using ProSoft
Configuration Builder.
8.2.1 ASCII Port [x]
Use the
ASCII Port [x]
section in ProSoft Configuration Builder to configure the
ASCII port parameters. The value of [x] depends on the number of ports on your
PLX3x gateway (1 to 4).
To configure the ASCII Port in PCB
1
In ProSoft Configuration Builder, click the
[+]
next to the gateway, then click
the
[+]
next to
ASCII Port [x]
.
2
Double-click the second
ASCII PORT [x]
to display the
Edit - ASCII PORT [x]
dialog box.
3
In the dialog box, click a parameter and then enter a value for the parameter.
Parameter
Value
Description
Enabled
Yes or No
Specifies if the port on the module will be utilized.
N
O
- the port will not be used.
Y
ES
- the port will be used supporting the ASCII protocol.
RS Interface
0, 1, 2
Specifies the RS interface to be utilized when serial ports are used on the
serial expansion module (Ports 1 to 3).
0 = RS-232
1 = RS-485
2 = RS-422
Rx DB Start
-1 or 0 to
3896
Specifies the starting location in the internal database where the received
data will be stored. The buffer holds 130 words, however, the first three
words of the data area define the sequence number, last write byte count
