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UDS-10 User Guide 3-23
3.6.10 Pack Control
Two firmware-selectable packing algorithms define how and when packets are sent to the
network. The standard algorithm is optimized for applications in which the unit is used in a
local environment, allowing for very small delays for single characters while keeping the
packet count low. The alternate packing algorithm minimizes the packet count on the network
and is especially useful in applications in a routed Wide Area Network (WAN). Adjusting
parameters in this mode can economize the network data stream.
Pack control settings are enabled in Flush Mode. Set this value to 00 if specific functions are
not needed.
Note: See Table 35 - Binary to Hexadecimal Conversion Table.
Table 14 - Pack Control Options
Option 7 6 5 4 3 2 1 0
Idle Time
Force transmit: 12ms 0 0
Force transmit: 52ms 0 1
Force transmit: 250ms 1 0
Force transmit: 5sec 1 1
Trailing Characters
None 0 0
One 0 1
Two 1 0
Send Characters
2-Byte Send Character
Sequence
1
Send Immediately After
Send chars
1
Idle Time: Idle time to "Force transmit" defines how long the unit should wait before
sending accumulated characters. This wait period is between characters. If there is an idle
period between characters equal to the force transmit set, then the unit will package up the
serial data currently in the buffer and send it to the network.
Trailing Characters: In some applications, CRC, Checksum, or other trailing characters
follow the end-of-sequence character; this option helps to adapt frame transmission to the
frame boundary.