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Subject: modbus TCP
From: liuxiaomin via Tech-talk <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Wed, 22 Sep 2021 14:45:49 +0800

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

 

 

Windows 邮件发送

 


Replies:
Re: modbus TCP Mark Rivers via Tech-talk

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