回复: StreamDevice

[liuxiaomin via Tech-talk <tech-talk at aps.anl.gov>]

Hi Mark,

 

Thank you for helping me solve the previous problem.

I want to execute a *IDN? command which returns the instrument’s identification string,

 

The db files is as follows:

 

record(ai, "$(user):xh") {

  field(DTYP, "stream")

  field(SCAN, "1 second")

  field(INP, "@sd.proto DEVICENAME CAT1")

}

 

The proto files is as follows:

 

 

DEVICENAME{

    out "*IDN?";  

    in "%s";

}

 

When I execute the st.cmd file,it shows no error, but when I type caget, it shows 0.I think it should returns a string with the following format: Agilent Technologies,53230A,MY58060118,02.09-1731.8935-1.19-4.16-127-159-35. The description of the command of *IDN？ is in the attachment.

How can I solve this problem?

 

Thanks,

Xiaomin

 

 

 

 

 

 

 

 

 

发件人: Mark Rivers
发送时间: 2022年3月3日 10:28
收件人: tech-talk at aps.anl.gov; 刘晓敏
主题: Re: StreamDevice

 

Hi Xiaomin,

 

I am confused.  You have this which implies that the external device for stream is at IP address 169.254.2.30

 

drvAsynIPPortConfigure("CAT1","169.254.2.30:5025",0,0,1)

 

But your IOC has this:

EPICS_CA_ADDR_LIST: 169.254.2.30:5068

 

Your client host has this:

EPICS_CA_ADDR_LIST=169.254.2.30:5068

 

So your IOC, client machine, and external device all have the same IP address?

 

If this is correct, then your EPICS IOC and the EPICS client (caget) are on the same subnet.  Then just don't define EPICS_CA_ADDR_LIST or EPICS_CA_AUTO_ADDR_LIST.  It should find the PV fine.

 

Mark

 

 

 

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of 刘晓敏 via Tech-talk <tech-talk at aps.anl.gov>
Sent: Wednesday, March 2, 2022 7:59 PM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: StreamDevice

 

Hi,

I am trying to use StreamDevice on debian system to control device, the device is universal frequency counter/timer.

When I execute the st.cmd file,it shows no error, but when I type caget, it shows pv name not found:

 

#!../../bin/linux-x86_64/sd

< envPaths

epicsEnvSet("IOC","iocsd")

epicsEnvSet("TOP","/home/iocusr/sd")

epicsEnvSet("MODULES","/opt/epics/base/../modules")

epicsEnvSet("AUTOSAVE","/opt/epics/base/../modules/autosave-R5-7-1")

epicsEnvSet("ASYN","/opt/epics/base/../modules/asyn-R4-41")

epicsEnvSet("BUSY","/opt/epics/base/../modules/busy-1-6-1")

epicsEnvSet("CALC","/opt/epics/base/../modules/calc-R3-7-4")

epicsEnvSet("CAPUTLOG","/opt/epics/base/../modules/caPutLog-3-5")

epicsEnvSet("IOCSTATS","/opt/epics/base/../modules/iocStats-3-1-16")

epicsEnvSet("MODBUS","/opt/epics/base/../modules/modbus-R3-2")

epicsEnvSet("NETDEV","/opt/epics/base/../modules/netDev-1-0-6")

epicsEnvSet("PC-MONITOR","/opt/epics/base/../modules/PC-MONITOR1-0-2")

epicsEnvSet("PROCSERVCONTROL","/opt/epics/base/../modules/procServControl-1-9")

epicsEnvSet("S7NODAVE","/opt/epics/base/../modules/s7nodave-2-1-3")

epicsEnvSet("S7PLC","/opt/epics/base/../modules/s7plc")

epicsEnvSet("SSCAN","/opt/epics/base/../modules/sscan-2-10")

epicsEnvSet("STREAM","/opt/epics/base/../modules/StreamDevice-2-8-9")

epicsEnvSet("SNCSEQ","/opt/epics/base/../modules/seq-2-2-6")

epicsEnvSet("EPICS_BASE","/opt/epics/base")

epicsEnvSet("EPICS_CA_SERVER_PORT", 5068)

epicsEnvSet("IOCNAME","sd")

cd "/home/iocusr/sd"

dbLoadDatabase "dbd/sd.dbd"

sd_registerRecordDeviceDriver pdbbase

dbLoadRecords "db/sd.db", "user=sd"

drvAsynIPPortConfigure("CAT1","169.254.2.30:5025",0,0,1)

epicsEnvSet("STREAM_PROTOCOL_PATH", ".:../../db")

cd "/home/iocusr/sd/iocBoot/iocsd"

iocInit

Starting iocInit

sevr=info s7plcInit: no stations configured

iocRun: All initialization complete

epics> dbl

sd:xh

caget sd:xh  

Channel connect timed out: 'sd:xh' not found.

 

epics> asynReport 1

CAT1 multiDevice:No canBlock:Yes autoConnect:Yes

    enabled:Yes connected:Yes numberConnects 1

    nDevices 0 nQueued 0 blocked:No

    asynManagerLock:No synchronousLock:No

    exceptionActive:No exceptionUsers 1 exceptionNotifys 0

    traceMask:0x1 traceIOMask:0x0 traceInfoMask:0x1

    Port 169.254.2.30:5025: Connected

 

 

 

 

The db files is as follows:

record(ai, "$(user):xh") {

  field(DTYP, "stream")

  field(SCAN, "1 second")

  field(INP, "@sd.proto DEVICENAME CAT1")

}

 

 

The proto files is as follows:

 

 

DEVICENAME{

    out "*IDN?";  

    in "%f";

}

 

The output of the epicsPrtEnvParams command at the IOC prompt is as follows:

 

epicsPrtEnvParams               

EPICS_CA_ADDR_LIST: 169.254.2.30:5068

EPICS_CA_CONN_TMO: 30.0

EPICS_CA_AUTO_ADDR_LIST: NO

EPICS_CA_REPEATER_PORT: 5065

EPICS_CA_SERVER_PORT: 5068

EPICS_CA_MAX_ARRAY_BYTES: 16384

EPICS_CA_AUTO_ARRAY_BYTES: YES

EPICS_CA_MAX_SEARCH_PERIOD: 300.0

EPICS_CA_NAME_SERVERS is undefined

EPICS_CA_MCAST_TTL: 1

EPICS_CAS_INTF_ADDR_LIST is undefined

EPICS_CAS_IGNORE_ADDR_LIST is undefined

EPICS_CAS_AUTO_BEACON_ADDR_LIST is undefined

EPICS_CAS_BEACON_ADDR_LIST is undefined

EPICS_CAS_SERVER_PORT is undefined

EPICS_CA_BEACON_PERIOD: 15.0

EPICS_CAS_BEACON_PERIOD is undefined

EPICS_CAS_BEACON_PORT is undefined

EPICS_BUILD_COMPILER_CLASS: gcc

EPICS_BUILD_OS_CLASS: Linux

EPICS_BUILD_TARGET_ARCH: linux-x86_64

EPICS_TZ: CST6CDT,M3.2.0/2,M11.1.0/2

EPICS_TS_NTP_INET is undefined

EPICS_IOC_IGNORE_SERVERS is undefined

EPICS_IOC_LOG_PORT: 7004

EPICS_IOC_LOG_INET is undefined

EPICS_IOC_LOG_FILE_LIMIT: 1000000

EPICS_IOC_LOG_FILE_NAME is undefined

EPICS_IOC_LOG_FILE_COMMAND is undefined

IOCSH_PS1: epics>

IOCSH_HISTSIZE: 50

IOCSH_HISTEDIT_DISABLE is undefined

epics> 

 

 

The output of theprintenv | grep EPICS command at the shell prompt where  running caput is as follows:

 

printenv | grep EPICS

EPICS_CA_ADDR_LIST=169.254.2.30:5068

EPICS_HOST_ARCH=linux-x86_64

EPICS_CA_AUTO_ADDR_LIST=NO

EPICS_BASE=/opt/epics/base

The description of the command of *IDN？ is in the attachment.

I don't know what's wrong, how can I solve this problem?

Thanks,

Xiaomin