66 - Configuring an Ethernet Device
DeviceMaster PNIO | UP User Guide
: 2000639 Rev. A
Configuring an Ethernet Device
Tx Append
Delimiters from
PLC
Start Transmission
(STX)
When enabled, the DeviceMaster appends an STX (start of
transmission) byte sequence which is configured as
one byte
or
two bytes
to the beginning of the Ethernet packet before it is
sent.
The length indicates the number of STX bytes, values for
length are:
•
none
- Disables this function.
•
one byte
- Inserts one STX byte before the data.
•
two bytes
- Inserts two STX bytes before the data.
Byte 1
- Specifies the transmit character associated with the
first STX byte, if the length is
one byte
or
two bytes
. You can
specify a value between 0 and 255 in decimal format.
Byte 2
- Specifies the transmit character associated with the
second STX byte, if the length is
two bytes
. You can specify a
value between 0 and 255 in decimal format.
Tx Append
Delimiters from
PLC
End Transmission
(ETX)
When enabled, the DeviceMaster appends an ETX (end of
transmission) byte sequence which is configured as
one byte
or
two bytes
to the end of the Ethernet packet before it is sent.
The length indicates the number of ETX bytes, valid values for
length are:
•
none
- Disables this function.
•
one byte
- Inserts one ETX byte at the end of the data.
•
two bytes
- Inserts two ETX bytes at the end of the data.
Byte 1
- Specifies the transmit character associated with the
first ETX byte, if the length is set to
one byte
or
two bytes
. You
can specify a value between 0 and 255 in decimal format.
Byte 2
- Specifies the transmit character associated with the
second ETX byte, if the length is
two bytes
. You can specify a
value between 0 and 255 in decimal format.
Tx Append
Delimiters from
PLC
Strip Rx STX/ETX
Chars
When you select this check box, the DeviceMaster strips STX/
ETX characters from received Ethernet packets. Clear the
check box when you do not want the DeviceMaster to strip
STX/ETX characters from received Ethernet packets.
Ethernet Packets sent from the PLC to the DeviceMaster (over
Ethernet), and then sent out the Ethernet device, are not
checked for STX/ETX.
No STX/ETX character stripping occurs in these Ethernet
packets.
Ethernet Device Configuration - Ethernet Packet (Continued)
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