PLX51-DL-232
Setup
Data Logger
User Manual
ProSoft Technology, Inc.
Page 21 of 59
Parameter
Description
ModbusRTU – Serial Modbus
ModbusTCP – Modbus over Ethernet
Logging Mode
This parameter determines if records are overwritten once the memory is filled.
Overwrite = Old records are overwritten, giving priority to newer data.
Hold = Old records are preserved while new records are not stored.
3.4.2 Serial Tab
The
Serial
tab is shown in the figure below. The Serial configuration is opened by either
double-clicking on the PLX51-DL-232 icon in the tree, or right-clicking the PLX51-DL-232
icon and selecting
Configuration.
Select the
Serial
tab.
Figure 3.15 - Serial configuration
The Serial configuration (
Serial
tab) consists of general Serial and DF1-specific
parameters. For Modbus RTU, only the
Baud Rate
and
Parity
need be configured.
Table 3.2 - Serial ModbusRTU and DF1 configuration parameters
Parameter
Description
Baud Rate
This configures the speed of the data that is sent across the RS232 serial
network. The PLX51-DL-232 provides the following speeds:
1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200
Parity
This configures the parity of the RS232 serial port. The PLX51-DL-232 allows
for Even, Odd, or None.
Protocol
This configures the PLX51-DL-232 to operate in full duplex or half duplex
mode on the DF1 network.
Error Detection
The PLX51-DL-232 can be configured to perform either BCC or CRC
checksum validation on incoming and outgoing packets. CRC checksums is a
much stronger validation method, but is more processor-intensive to perform.
Embedded Response
This configures the PLX51-DL-232 to add the acknowledge responses in the
data payload. It can be configured to be Auto Detect or On.