Effect Of The Value Range On The 2Ao I St Analog Output - Siemens SIMATIC ET 200S Manual

Analog value representation
4.4 Effect on analog value representation
4.4.2

Effect of the value range on the 2AO I ST analog output

The way electronic modules respond to analog outputs depends on where the output values
fall within the value range. This is illustrated by the table below.
Table 4-6 Response of the analog modules, depending on where the analog output value falls within the range of values
Output value falls in ...
Nominal range
Over-/underrange
Overflow
Underflow
Prior to parameter assignment, or incorrect parameter
assignment*
* With product version 1 of the 2AO I ST, the following applies: If the configured substitute value is outside the nominal
range, a diagnostic message for a parameter assignment error is registered and the SF LED lights up. In this status the
output values transferred from the DP master are output at the analog output modules.
18
Output value in SIMATIC S5/S7 format
Value from DP master
Value from DP master
0-signal
0-signal
0-signal
2AO I ST analog electronic module (6ES7135-4GB01-0AB0)
Manual, 04/2007, A5E01076949-01