gefran AFE200 4 Series Instruction Manual page 75

Practical example
The following examples illustrate the philosophies and methods with which more
or less complex operations are performed in the single "function blocks", the
results of which represent the output of the block.
• Example: Inverting the analog reference signal
To invert the "Analog input 1 Block" output signal, the value of the An inp 1 sign
src parameter (PAR: 1526), which has a default setting of Null (no operation),
must be changed by selecting the source of the command signal from among
those listed in the L_DIGSEL 2 selection list, for example Digital input X mon,
One (function always enabled), etc.
* -1
Terminal input
Analog input 1 Block Analog input 1 mon
* +1
An inp 1 alt value
Null An inp 1 sign src
An inp 1 alt sel src
Null
Note !
This section contains a brief description of the functions of the other parameters in the function blocks
not included for the changes in the example.
The An inp 1 alt sel src parameter (PAR: 1528) can be used to select an alterna-
tive reference for the Analog input 1 mon (PAR: 1500) output.
The An inp 1 alt value parameter (PAR: 1524) determines the alternative refer-
ence value for the Analog input 1 mon (PAR: 1500) output.
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AFE200 • Instruction Manual