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<== Date ==> <== Thread ==>
Subject: Re: Horner PLC %T readout
From: Eric Norum <[email protected]>
To: Mark Rivers <[email protected]>
Cc: EPICS Tech-Talk <[email protected]>
Date: Thu, 13 Jun 2013 14:33:22 -0700
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 <[email protected]> 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
[email protected]

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RE: Horner PLC %T readout Mark Rivers
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