ProSoft Technology PLX3x Series, User Manual

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ASCII Protocol PLX3x Series ♦ Multi-Protocol Gateways
User Manual
Page 144 of 215 ProSoft Technology, Inc.
January 25, 2018
Rx
Termination
Type 0 to 15 Specifies the receive termination characteristics for the port. This value is
bit mapped as follows:

Bit 0 - Termination character(s) used

Bit1- Message timeout used

Bit2 - Intercharacter delay timeout used

Bit3 - Packet size limit used. If the parameter is set to zero, the port is
placed in stream mode.
Rx Term
Count 0 to 12 Specifies the number of termination characters used to define the end of
received message if bit 0 of the Type parameter is set.
Rx Term
Chars ASCII
characters This array of 12 characters specifies the termination characters at the end
of each received message. Each character occupies one position in the
array. The number of characters to be used in the array is set in the Rx
Term Count parameter.
Rx Packet
Length 0 to 200 Specifies the length of data required to be received on the port before
transferring the data to the processor if bit 3 is set in the RX Termination
Type parameter.
Rx Timeout 0 to 65535 Specifies the number of milliseconds to wait after the first character is
received on the port before automatically sending the data to the processor
if bit 1 is set in the RX Termination Type parameter.
Rx Delay 0 to 65535 Specifies the number of milliseconds to wait between each character
received on the port before sending the data to the processor if bit 2 is set
in the RX Termination Type parameter.
Swap Rx
Data Byte Yes or No Specifies if the data received by the module has the byte order of the data
swapped.

N
O
- no byte swapping occurs.

Y
ES
- the odd byte is swapped with the even byte in each word of data
received.
Tx Timeout 0 to 65535 Specifies the timeout period to transmit a message out the port. A
message must be transmitted out the port within the specified timeout
period. Message transmission is aborted if the timeout is exceeded.
Tx Minimum
Delay 0 to 65535 Specifies the minimum number of milliseconds to delay before transmitting
a message out the port. This pre-send delay is applied before the RTS on
time. This may be required when communicating with slow devices.
Swap Tx
Data Bytes Yes or No Specifies if the data to be transmitted by the module has the byte order of
the data swapped.

N
O
- no byte swapping occurs.

Y
ES
- the odd byte is swapped with the even byte in each word of data
received.