Experimental Physics and
Industrial Control System

if I change the mode to I/O Intr after the IOC has started,
data in the waveform are equal to zero, no crash.

I will run this under gdb and send you the trace.



Le 05/04/2012 17:25, Eric Norum a écrit :

On Apr 5, 2012, at 7:19 AM, haquin wrote:

Hi Mark,

I started to test the new release R2-4 of your modbus driver,

1/ I have a regression problem:
in case of "intarray_in" when scan mode is I/O Intr:
Linux IOC crashes with segmentation error message

Could you run this again under GDB and send a stack trace?

VxWorks IOC doesn't crash but data in the waveform are equal to zero

On Linux if I start with the scan mode set to none there is no crash.

What happens if you change the mode to I/O Intr after the IOC has started?

In both cases linux and VxWorks,
if I change the scanning mode to any periodic scan (with a caput in the SCAN field), I do retreive correct data.

here is my drvModbusAsynConfigure
drvModbusAsynConfigure("AR-GT7-PC3:Read_All",    "AR-GT7-PC3", 255,  4 , 0 , 46 , 0 ,  2000 , "InterfaceIocaste")

here is my waveform:
record(waveform, "$(EQPT):ReceiveModbusTable") {
  field(DTYP, "asynInt32ArrayIn")
  field(FLNK, "$(EQPT):TrigModbusTableProcessing")
  field(INP, "@asyn($(EQPT):Read_All 0)MODBUS_DATA")
  field(NELM, "46")
  field(FTVL, "LONG")
  field(SCAN, "I/O Intr")
}

2/ I have tested the retreival of float32_LE with ai record, this is ok

tomorrow I'll test retreival of int32 and also he writting.

best regards.

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n:Haquin;Christophe
email;internet:[email protected]
tel;work:02 31 45 46 61
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version:2.1
end:vcard

References:

Proposed support for additional Modbus data types Mark Rivers

RE: Proposed support for additional Modbus data types Mark Rivers

Re: Proposed support for additional Modbus data types haquin

RE: Proposed support for additional Modbus data types Mark Rivers

Re: Proposed support for additional Modbus data types haquin

Re: Proposed support for additional Modbus data types Eric Norum

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