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<== Date ==> <== Thread ==>
Subject: 回复: modbus TCP
From: liuxiaomin via Tech-talk <tech-talk at aps.anl.gov>
To: Mark Rivers <rivers at cars.uchicago.edu>
Cc: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Fri, 24 Sep 2021 18:50:36 +0800

Hi Mark,

I am sorry to have sent you two emails,the first one can be ignored.

Thank you for your answer,  My type of device  at that IP address is MPDU.

I changed the IP address.( 192.168.1.163:8055) . And the complete output is as follows:

 

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

< envPaths

epicsEnvSet("IOC","iocsinModbus")

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

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", 5064)

#epicsEnvSet("IOCNAME","sinModbus")

## Register all support components

dbLoadDatabase "../../dbd/sinModbus.dbd"

sinModbus_registerRecordDeviceDriver pdbbase

#asynReport(10,"CAT1")

# Configure IP port

drvAsynIPPortConfigure("CAT1","192.168.1.163:8055",0,0,1)

# Configure modbus

modbusInterposeConfig("CAT1",0,2000,0)

drvModbusAsynConfigure("AI1R","CAT1",0,3,0010,2,0,100,"CAT")

#cd "${TOP}/iocBoot/${IOC}"

dbLoadRecords "../../db/dbpdu.db", "DEVNAME=TEST"

iocInit

Starting iocInit

############################################################################

## EPICS R7.0.5

## Rev. 2021-09-13T15:44+0800

############################################################################

drvStreamInit: Warning! STREAM_PROTOCOL_PATH not set. Defaults to "."

sevr=info s7plcInit: no stations configured

iocRun: All initialization complete

dbl

TEST:IN1

epics> 2021/09/24 18:14:37.388 drvModbusAsyn::doModbusIO port AI1R error calling writeRead, error=192.168.1.163:8055 timeout: Resource temporarily unavailable, nwrite=6/6, nread=0

 

After I  typing asynReport 1,the complete output is as follows:

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 0 exceptionNotifys 0

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

Port 192.168.1.163:8055: Connected

AI1R multiDevice:Yes canBlock:Yes autoConnect:Yes

enabled:Yes connected:Yes numberConnects 1

nDevices 1 nQueued 0 blocked:No

asynManagerLock:No synchronousLock:No

exceptionActive:No exceptionUsers 0 exceptionNotifys 0

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

addr 0 autoConnect Yes enabled Yes connected Yes exceptionActive No

        exceptionActive No exceptionUsers 0 exceptionNotifys 0

        blocked No

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

modbus port: AI1R

initialized:        true

asynOctet server:   CAT1

modbusSlave:        0

modbusFunction:     3

modbusStartAddress: 010

modbusLength:       02

absoluteAddressing: false

dataType:           0 (INT16)

plcType:           

I/O errors:         9

Read OK:            0

Write OK:           0

pollDelay:          0.100000

Time for last I/O   0 msec

Max. I/O time:      0 msec

Time per hist. bin: 1 msec

Port: AI1R

  Timestamp: <undefined>

  Input EOS[0]:

  Output EOS[0]:

Parameter list 0

Number of parameters is: 12

Parameter 0 type=asynInt32, name=MODBUS_DATA, value is undefined

Parameter 1 type=asynInt32, name=MODBUS_READ, value is undefined

Parameter 2 type=asynUInt32Digital, name=ENABLE_HISTOGRAM, value is undefined

Parameter 3 type=asynInt32, name=READ_HISTOGRAM, value is undefined

Parameter 4 type=asynInt32, name=HISTOGRAM_BIN_TIME, value is undefined

Parameter 5 type=asynInt32Array, name=HISTOGRAM_TIME_AXIS, value is undefined

Parameter 6 type=asynFloat64, name=POLL_DELAY, value is undefined

Parameter 7 type=asynInt32, name=READ_OK, value=0, status=0

Parameter 8 type=asynInt32, name=WRITE_OK, value=0, status=0

Parameter 9 type=asynInt32, name=IO_ERRORS, value=9, status=0

Parameter 10 type=asynInt32, name=LAST_IO_TIME, value=0, status=0

Parameter 11 type=asynInt32, name=MAX_IO_TIME, value=0, status=0

epics>

 

Then,

$ caget TEST:IN1

CA.Client.Exception…............................................

Warning: “Identical process variable names on multiple servers”

Context: “Channel: “TEST:IN1”, Connecting to: 192.168.1.160:41299, Ignored: 192.168.1.160:5064”

Source File: ../cac.cpp line 1320

Current Time: Fri Sep 24 2021 18:16:53.789456666

…...............................................................

TEST:IN1                       0

 

Finally, I found  the result read value was wrong.

 

 

 

从 Windows 版邮件发送

 

发件人: Mark Rivers
发送时间: 2021年9月22日 20:51
收件人: liuxiaomin
抄送: tech-talk at aps.anl.gov
主题: Re: modbus TCP

 

Hi,

 

 

Sorry I did not see your second message before I answered your first one.

 

 

The st.cmd looks OK to me.  Please send the complete output when the IOC boots.

 

 

Mark

 

 

________________________________

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of liuxiaomin via Tech-talk <tech-talk at aps.anl.gov>

Sent: Wednesday, September 22, 2021 1:45 AM

To: tech-talk at aps.anl.gov

Subject: modbus TCP

 

 

Hi,

 

  I am trying to use modbus on debian system to control device,

 

The st.cmd files is as follows:

 

drvAsynIPPortConfigure("CAT1","192.168.1.163:502",0,0,1)

 

modbusInterposeConfig("CAT1",0,2000,0)

 

drvModbusAsynConfigure("CAT_AI1R","CAT1",0,3,0008,2,0,100, "CAT")

 

The db files is as follows:

 

record(ai, "$(DEVNAME):IN1") {

 

    field(DTYP,"asynInt32")

 

    field(INP,"@asynMask(CAT_AI1R 0 16)INT16")

 

    field(PREC,"1")

 

    field(SCAN,"I/O Intr")

 

}

 

 

 

When I execute the st.cmd file,it shows the following error:

 

 

 

drvStreamInit: Warning! STREAM_PROTOCOL_PATH not set. Defaults to "."

 

TEST:CAT1:IN1 devAsynInt32::initCommon connectDevice failed asynManager:connectDevice port CAT_AI1R not found

 

 

 

How can I solve this problem?

 

Thanks,

 

Xiaomin

 

 

 

 

 

从 Windows 版邮件<https://go.microsoft.com/fwlink/?LinkId=550986>发送

 

 

 

Replies:
Re: modbus TCP Mark Rivers via Tech-talk
Re: modbus TCP Ralph Lange via Tech-talk
References:
modbus TCP liuxiaomin via Tech-talk
Re: modbus TCP Mark Rivers via Tech-talk
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