Re: Horner PLC %T readout

[Eric Norum <wenorum@lbl.gov>]

No, I don't think that's the problem.

For the %R values the spreadsheet has values from R1100 through R1137.  I can successfully read these using the command:

# Read 38 starting at Modbus 4099: Horner %R1100 through %R1137 inclusive

drvModbusAsynConfigure("etmHPA_r0i", "etmHPAPLC_2", 0, 3, 4099, 38, 0, 1000, "Horner")

So the values in the table shown in the right column of the table appear to be decimal.

On Jun 13, 2013, at 2:21 PM, Mark Rivers <rivers@cars.uchicago.edu> wrote:

In their table they list the Modbus offset for the %T1 register as 06000.  I interpret that as octal 6000, because Modbus traditionally use octal, and they put a leading 0. 

 

But in your drvModbusAsynConfigure command you did not put a leading 0, so it is interpreting it as decimal 6000.

 

Now you also need to figure out if T513 is 513 decimal from the beginning, or 513 octal!

 

Mark

 

 

-- 
Eric Norum
wenorum@lbl.gov