5 Function blocks
5.22 MX, data multiplexer
Control Relay easy800
11/11 MN04902001Z-EN
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221
Parametric programming of the function block inputs/outputs
When using the function block in the circuit diagram for the first time, press
OK to enter the general display of the function block parameters
automatically, as shown in the figure on the left for an on-delayed timing
relay. Enter the function block settings here. The display contains the
following elements:
Inputs
K: Function block input K is used to define the input channel to be supplied at
function block output QV.
I1 to I8: Assign the values to function block inputs I1 to I8 that you wish to
output on function block output QV.
You can assign the following operands to the function block inputs K and
I1 to I8:
•
Constant.
•
Markers MD, MW, MB.
•
Analog inputs IA01 to IA04:
•
IA01: Terminal I7.
•
IA02: Terminal I8.
•
IA03: Terminal I11.
•
IA04: Terminal I12.
•
Analog output QA01.
•
Output
…
QV of a different function block.
Output
The output QV supplies the value present at the selected input channel.
You can assign the following operands to output MX..QV:
•
Analog output QA01.
•
Markers MD, MW, MB.
Function of the function block
The multiplexer is active if the Enable coil MX..EN is set to 1.
You use the channel number input MX..K to set which input is to be
switched through to the output. The channel number input switches the
input values in their order, i.e.:
•
Channel number 0 supplies the input MX..I1 to MX..QV.
•
Channel number 7 supplies the input MX..I8 to MX..QV.
You can also change the channel number when the EN input is set.
MX01 +
>K
>I1
>I2
>I3
>I4
>I5
>I6
>I7
>I8
QV>
MX01
Function block; Data multiplexer, number 01
+
Parameter set can be called via the PARAMETERS menu
>K
Channel number (0 - 7)
>I1
>I8
Input channels I1 to I8, value range:
- 2147483648 - 2147483647
QV>
Supplies the selected input value
