Analog address?

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Thread Starter

RENE VENTER

Hi Automation list.
I am using a Siemens S5-95U PLC. If I use the onboard analog inputs, what will the module address (BG) be?

Thanks.
Rene
 
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Michael Griffin

At 14:31 06/11/00 -0500, RENE VENTER wrote:
<clip>
>I am using a Siemens S5-95U PLC. If I use the onboard analog inputs,
>what will the module address (BG) be?
<clip>
I assume that if you know the parameter name, you know enough about FB250. The BG number is 8. KNKT=x,y where x is 0 to 7 (channel), and y is always 4 (unipolar).

The following is a quote from the Siemens manual:

"Note: The cyclically read onboard analog inputs of the S5-95U (must be parameterized in DB1) can be read in directly by means of the integrated FB250 (Reading in analog value). If you still wish to use the integrated FB250 for reading in analog values although the inputs are not read cyclically, you have to set the bit "Single scan" for FB250."

The physical address of channel 0 is IW40, and channel 7 is IW54. Note that these are not scanned as cyclic IO if DB1 is not configured
(although see the previous statement on FB250).

The complete manual for the 95U can be down loaded from Siemens' web site for free.


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Michael Griffin
London, Ont. Canada
[email protected]
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