On startup, SrParxchEwSend reads the configuration file named on the command line. Commands in this file set all the parameters used for configuring the Earthworm SrParxchEwSend module. In the control file, lines may begin with a valid SrParxchEwSend command (listed below) or with one of 2 special characters:
Command names must be typed in the control file exactly as shown in this document (upper/lower case matters!). Blank lines are also permitted in the control file.# marks the line as a comment (example: # This is a comment).
@ allows control files to be nested; one control file can be accessed from another with the command "@" followed by a string representing the path name of the next control file (example: @model.d).
Below are the commands recognized by SrParxchEwSend, grouped by the
function they influence. Some of the commands are required, as noted.
They may be specified in any order in the control file.
In the following section, all configuration file commands are listed
in alphabetical order. Listed along with the command (bold-type) are
its arguments (in red), the name of the subroutine that processes the
command, and the function within the module that the command influences.
A detailed description of the command and is also given. Default values
and example commands are listed after each command description.
1. FUNCTIONAL COMMAND LISTING
Earthworm system setup:
ModuleId required
RingName required
LogFile required
HeartbeatInterval required
OutputMsgType optional
Debug optional
PARxCH data acquisition parameters:
AtodDriverName required
AtodModelName required
PortMode required
SamplingRate required
PARGPS timing module parameters:
GpsEnable required
GpsDriverName required
GpsSerialPort required
GpsModelName optional
Summary logging parameters:
SummaryInterval optional
GpsReportInterval optional
GpsBadLimit optional
Channel SCNL parameters:
EwChannelScnl optional
EwChannel deprecated (use EwChannelScnl instead)
2. ALPHABETIC COMMAND LISTING & DESCRIPTION
command arg1 function
AtodDriverName driver_name PARxCH Configuration
Sets the name of the PARxCH device driver to driver_name.
This name is case sensitive and must match the name used when installing the
driver.
Default: None
Example: AtodDriverName SrParXch378
AtodModelName xch_model_name PARxCH Configuration
Indicates which member of the PARxCH family of 24 bit data acquisition devices
is being used. xch_model_name can be PAR1CH, PAR4CH, or
PAR8CH. This name is case sensitive and must match the model you are actually
using.
Default: None
Example: AtodModelName PAR8CH
Debug n Earthworm setup
Sets the log output level for SrParxchEwSend. Errors and warnings are always
logged. Level 0 adds startup info. Level 1 adds general summaries every
SummaryInterval seconds and GPS lock status summaries
every GpsReportInterval seconds. Level 2 adds
some additional details. Level 3 adds time and satellite info for every 1 second buffer
of data. Level 4 adds NMEA messages for every buffer. Level 5, primarily for code
debugging, adds function calls and program variable values.
Default: 0
Example: Debug 1
EwChannel n sta comp net pin Channel Configuration
This command is similar to EwChannelScnl except there is no location value.
Please use EwChannelScnl instead.
Default: The channels are named CH## with component xxx and net SR
the pin number is set equal to the PARxCH channel number.
Example: EwChannel 0 CH00 xxx SR 0
EwChannelScnl n sta comp net loc pin Channel Configuration
There should be one EwChannelScnl command for each PARxCH channel, including
special channels like the digital and GPS mark channels. This information
is used to provide the full station, component, network and location names
(SCNL) plus pin number as headers for the earthworm trace buffer messages.
n indicates the PARxCH channel number while
sta comp net loc pin give the earthworm SCNL and
pin values.
Default: The channels are named CH## with component xxx, net SR and
location -- (indicating blank location). The pin number is
set equal to the PARxCH channel number.
Example: EwChannelScnl 0 CH00 xxx SR -- 0
GpsBadLimit nbad Summary Logging
The GPS lock status is determined once a second (ie for every buffer of data
acquired). It is defined as good if 3 or more satellites are in view, and
as bad otherwise. Since there are typically many seconds in one
GpsReportInterval, we need a criteria to
determine if the GPS lock status summarized over the interval is good or bad.
GpsBadLimit provides this criteria. If the GPS lock status was bad for more
than nbad seconds during the current GpsReportInterval,
the summary status is defined as bad. An error message is written to the
Earthworm ring every time the summary GPS lock status changes.
Default: 1
Example: GpsBadLimit 60
GpsDriverName driver_name PARGPS Configuration
Sets the name of the PARGPS device driver to driver_name.
This name is case sensitive and must match the name used when installing the
driver.
Default: None
Example: GpsDriverName SrParGps
GpsEnable on_off PARGPS Configuration
This on_off switch is a case sensitive character string
and must be either ON or OFF. It controls whether or not the PARGPS is
used to provide precise time stamping of the data. If the PARGPS is not
used, the waveform tracebuf times are determined by multiplying the sample
rate by the number of samples.
Default: None
Example: GpsEnable ON
GpsModelName gps_model_name PARGPS Configuration
Indicates what equipment is being used to determine GPS time. Currently,
gps_model_name must be PARGPS, ONCORE, or PCTIME.
PARGPS is the default and refers to the Symmetric Research GPS timing unit
that includes a Trimble Ace III receiver. ONCORE refers to a Motorola Oncore
GT+ unit (this model has been discontinued by Motorola). PCTIME means time
stamping of the data is done using the PC system time and assumes this time is
accurate because it has been set using NTP (Network Time Protocol) or some other
GPS receiver. Other values may be allowed in the future.
Default: PARGPS
Example: GpsModelName PARGPS
GpsReportInterval nsec Summary Logging
A summary of the GPS lock status is written to the log file every
nsec seconds if the log file is turned on
(LogFile 1), a medium log output level is selected
(Debug >= 1), and you are using GPS
(GpsEnable ON). Set nsec
to 0 if no GPS lock status lines are desired.
Default: 0
Example: GpsReportInterval 1200
GpsSerialPort n PARGPS Configuration
This integer selects which COM port is used to transfer the GPS serial NMEA
strings that contain time and location to the PC. n
must be 1 or 2 for serial port COM1 or COM2 respectively.
Default: None
Example: GpsSerialPort 2
HeartbeatInterval nsec Earthworm Setup
Defines the number of seconds, nsec, between TYPE_HEARTBEAT
messages issued by SrParxchEwSend.
Default: none
Example: HeartbeatInterval 60
LogFile n Earthworm Setup
Sets the on-off switch for writing a log file to disk. If
n is 0, no log file will be written. If
n is non-zero, SrParxchEwSend will write daily log file(s)
called nnnnn_yyyymmdd.log where nnnnn is the name of the configuration file
(with the suffix '.d' removed) and yyyymmdd is the current UTC
date (ex: 20040123) on the system clock. The file(s)
will be written in the EW_LOG directory (environment variable).
Default: none
Example: LogFile 1
ModuleId mod_id Earthworm setup
Sets the module id for labeling all outgoing trigger, heartbeat, and error
messages. mod_id is a character string (valid strings
are listed in earthworm.d) that relates to a unique single-byte number. In
general, a different module ID is needed for each instance of SrParxchEwSend.
Default: none
Example: MyModuleId MOD_SRPARXCHEWSEND
OutputMsgType trace_format Earthworm setup
Tells SrParxchEwSend whether to send waveform messages in the the old
or new style tracebuf format. trace_format is
a case sensitive character string and must be either TYPE_TRACEBUF or
TYPE_TRACEBUF2. For Earthworm v7.0 and later, TYPE_TRACEBUF2 is the
default.
Default: TYPE_TRACEBUF2 (for v7.0 and greater, TYPE_TRACEBUF otherwise)
Example: OutputMsgType TYPE_TRACEBUF2
PortMode port_mode PARxCH Configuration
Indicates which protocol is used to communicate over the PC parallel port.
port_mode can be BPP, EPP, ECP/EPP, or ECP/BPP.
This name is case sensitive and must match the mode your PC is actually
using. Typically this setting is controlled in the BIOS CMOS setup area.
Use the diagnostic program diag.exe that comes with the PARxCH to see
which modes are enabled.
Default: None
Example: PortMode EPP
RingName ring Earthworm setup
Tells SrParxchEwSend which shared memory region to use for output.
ring is a character string (valid strings are
listed in earthworm.d) that relates to a unique number for the key to
the shared memory region.
Default: none
Example: RingName WAVE_RING
SamplingRate sps PARxCH Configuration
Requests how many samples per second to acquire. The actual sampling rate
may be a little different than the sps requested since
only certain rates are achievable with the PARxCH hardware. Currently,
the maximum allowed sps is 1000.
Default: None
Example: SamplingRate 100.0
SummaryInterval nsec Summary Logging
A summary of the analog, GPS PPS, and GPS serial info read is written to the
log file every nsec seconds if the log file is turned on
(LogFile 1) and a medium log output level is selected
(Debug >= 1). The GPS information will be
included only if you are using GPS (GpsEnable ON).
Set nsec to 0 if no summary lines are desired.
Default: 0
Example: SummaryInterval 1200
3. Sample Configuration File
# FILE: srparxchewsend.d Copyright (c), Symmetric Research, 2004-2006
#
# This is the SrParxchEwSend parameter file for acquiring data with a
# Symmetric Research PARxCH 24 bit A/D board and putting that
# data onto an earthworm ring.
#
# The standard earthworm import_generic/export (or export_scnl) functions
# can be used to transfer PARxCH tracebuf data from a local WAVE_RING to
# a WAVE_RING on another machine. If you have data from two different
# PARxCH boards arriving at the same ring, you must ensure that each is
# using a different ModuleId. Otherwise, the two sets of data will
# appear to be scrambled together which leads to lots of message sequence
# number errors.
#
# If you wish to use MOD_SRPARXCHEWSEND for a ModuleId instead of
# MOD_ADSEND_C, you must first define it in your earthworm.d file.
#
Debug 2 # control amount of info sent to log file 0-5
# warnings and errors always given
# 0 adds startup info
# 1 adds status summaries every GpsReportInterval
# 2 adds config + more detail (default)
# 3 adds trace data message info every second
# 4 adds counter values, NMEA strings every second
# Remaining levels 5-8 mostly for code debugging
#
# Basic Earthworm parameters:
#
MyModuleId MOD_ADSEND_C # module id for this instance of SrParxchEwSend
RingName WAVE_RING # shared memory ring for outputting acquired data
LogFile 1 # 0 to turn off disk log file; 1 to turn it on
HeartBeatInterval 60 # seconds between heartbeats, only checked
# after each second of data is acquired
#
# Optional Earthworm parameters:
#
OutputMsgType TYPE_TRACEBUF2 # Older style waveforms were identified by
# Station/Channel/Network (SCN), the newer
# style also includes Location. For Earthworm
# v7.0 and greater use, TYPE_TRACEBUF2. If
# you need the older style, use TYPE_TRACEBUF.
#
# Basic PARxCH parameters:
#
AtodDriverName SrParXch378 # name of PARxCH kernel mode device driver installed
AtodModelName PAR4CH # which PARxCH is being used: PAR1CH, PAR4CH, PAR8CH
PortMode EPP # protocol used for PC parallel port communications
SamplingRate 100.0 # requested sampling rate - the actual rate may be
# slightly different from this due to hardware
# considerations
#
# Basic PARGPS parameters:
#
GpsEnable ON # ON if using PARGPS, OFF otherwise
GpsDriverName SrParGps # name of PARGPS kernel mode device driver installed
GpsModelName PARGPS # usually PARGPS, may be PCTIME for NTP time
GpsSerialPort 2 # COM port being used for serial NMEA messages
#
# Optional logging parameters:
#
SummaryInterval 1200 # seconds in log file between summary info
# use 0 for no reporting
GpsReportInterval 3600 # seconds in log file between GPS lock lines
# use 0 for no reporting
GpsBadLimit 300 # number of bad locks allowed per interval
# before error message is sent
#
# Channel info: SCNL AND PIN VALUES FOR EACH A/D CHANNEL
#
# EwChannelScnl lines relate the PARxCH channel numbers to the SCNL and pin
# numbers used to identify channels in an earthworm system. The pin
# numbers are optional. If a pin number is not specified for a channel,
# the pin number is set to the A/D channel number.
#
# Three different versions of this section are given below showing how
# the setup would look when using the PAR1CH, PAR4CH, or PAR8CH. Only
# the version corresponding to the PARxCH you are actually using should
# be commented in, the other two should be commented out.
#
# The older keyword EwChannel is the same, except it has no location value.
# If OutputMsgType = TYPE_TRACEBUF2 and EwChannel is used, the location field
# defaults to "--" which means a blank location.
#
#
# Sample EwChannelScnl section for the PAR1CH
#
# A/D
# Channel Sta Comp Net Loc Pin
# ------- --- ---- --- --- ---
#EwChannelScnl 0 CH00 xxx SR -- 0
#EwChannelScnl 1 MARK xxx SR -- 1 # Include this when using PARGPS
#
# Sample EwChannelScnl section for the PAR4CH
#
# A/D
# Channel Sta Comp Net Loc Pin
# ------- --- ---- --- --- ---
#EwChannelScnl 0 CH00 xxx SR -- 0
#EwChannelScnl 1 CH01 xxx SR -- 1
#EwChannelScnl 2 CH02 xxx SR -- 2
#EwChannelScnl 3 CH03 xxx SR -- 3
#EwChannelScnl 4 MARK xxx SR -- 4 # Include this when using PARGPS
#
# Sample EwChannelScnl section for the PAR8CH
#
# A/D
# Channel Sta Comp Net Loc Pin
# ------- --- ---- --- --- ---
#EwChannelScnl 0 CH00 xxx SR -- 0
#EwChannelScnl 1 CH01 xxx SR -- 1
#EwChannelScnl 2 CH02 xxx SR -- 2
#EwChannelScnl 3 CH03 xxx SR -- 3
#EwChannelScnl 4 CH04 xxx SR -- 4
#EwChannelScnl 5 CH05 xxx SR -- 5
#EwChannelScnl 6 CH06 xxx SR -- 6
#EwChannelScnl 7 CH07 xxx SR -- 7
#EwChannelScnl 8 DGTL xxx SR -- 8
#EwChannelScnl 9 MARK xxx SR -- 9 # Include this when using PARGPS
#EwChannelScnl 10 CNTR xxx SR -- 10 # Include this when using PARGPS
#
# Actual EwChannelScnl section being used ...
# replace with appropriate values for your installation
#
# A/D
# Channel Sta Comp Net Loc Pin
# ------- --- ---- --- --- ---
EwChannelScnl 0 CH00 xxx SR -- 0
EwChannelScnl 1 CH01 xxx SR -- 1
EwChannelScnl 2 CH02 xxx SR -- 2
EwChannelScnl 3 CH03 xxx SR -- 3
EwChannelScnl 4 MARK xxx SR -- 4 # Include this when using PARGPS
The URL of this page is [http://folkworm.ceri.memphis.edu/ew-doc/cmd/srparxchewsend_cmd.html]
Contact: info@symres.com