ProSoft Technology AN-X-PB User Manual
Page 38

Page
34
AN-X-PBCAPT
November 2011
Source SAP, SSAP
You can select frames based on the source SAP. SAP values are
decimal.
Example: The following equation selects frames with source SAP 60.
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SSAP = 60
#
Data Values, DataByte[ofs] and DataWord[ofs]
You can use data values in equations. Offsets start from 0 and are
always byte offsets, even for word values.
Example:
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DataByte[0] = 0x55
#
Byte order in data words is high byte – low byte
For example, to select the following frame based on DataWord[1]
175: a30.120,268,769 SD2 0<125 ss DL 01 02 03 04 8d 8d…
use
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DataWord[1] = 0x0203
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Parameters
If you have passed in one or more parameters, you can access them using
CmdArg[0], CmdArg[1], CmdArg[2], or CmdArg[3].
Example:
The following equation, from the option file
QTS_PB_ToNodeFromNode.opt, selects frames that have a destination
address obtained from the first parameter and a source address obtained
from the second parameter.
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da=cmdarg[0] && sa=cmdarg[1]
#
See page 35 for information on how to pass in parameters.