Programmable Device Server with I/O Expansion Slot(s)
PDS-8x1 Series User Manual, Version 1.1.2, Apr. 2015
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The following is an overview of the parameters contained in the COM Port Settings section:
Item
Description
Default
Port (COM0 for ALL
PORTS)
The COM Port number on the PDS-8x1
controller
.
COM1
Baud Rate
This parameter is used to set the Baud Rate for the COM
ports.
9600
Data Bits
This parameter is used to set the Data Size for the COM
ports.
8
Parity
This parameter is used to set the Parity for the COM ports.
None
Stop Bits
This parameter is used to set the Stop Bits for the COM
ports.
1
Rx FIFO Trigger Level
This option is used to set the number of characters that
the COM Port can receive at once time, the PDS-8x1
controller will move the data from the COM Port FIFO to
the PDS-8x1 controller. If the amount of data transferred
is large and uses a transfer speed (115200 bps), setting a
smaller value is helpful in preventing data loss.
1
Data Buffered Delay
Time (DBDT)
When the COM port does not receive data from devices
connected over the period of DBDT setting, the PDS-8x1
controller will determine that the data transfer is over
and return to process next tasks.
0
End Char
The PDS-8x1 controller outputs an Ethernet packet
immediately after the ending-chars pattern is identified
from the incoming serial data.
0
(Disabled)
Operation Mode
M0: Transparent Mode (Multi-echo mode)
M1: Slave Mode (Single-echo mode)
M2: Half-Slave Mode (Is situated between M0 and the
M1 mode)
The more detailed information regarding M0, M1 and M2
modes, please refer to the
Section 4.3.1 “Operation
Mode"
.
M0
