IMO iSmart V4 - MX (Multiplexer) Function Block

Chapter 6 FBD Block Diagram Programming 190
MX (Multiplexer) function block
There is a maximum of 250 MX (Multiplexer) function blocks under FBD mode, and the function is same as Ladder
mode.
T
his special function transmits 0 or one of 4 preset values to MX current value memory by selection control coils
S1 and S2. The MX function enables simple operations to be carried out on integers.
The preset value V1~V4 can be constant or other function current value.
The table below describes the relationship between parameter and MX current value.
Control status
MX output coil
MX output value
MX disable
0
MX = 0
MX enable
S1
＝
0, S2
＝
0
1
MX = V0
S1
＝
0, S2
＝
1
1
MX = V1
S1
＝
1, S2
＝
0
1
MX = V2
S1
＝
1, S2
＝
1
1
MX = V3
Example:
F
BD display:
Enable Input
→
Selection coil S1
→
Selection coil S2
→
Parameter
→
Parameter display:
Parameter display 1
Parameter display 2
MX current value
→
Preset value V0
→
←
Preset value V2
Preset value V1
→
←
Preset value V3
※ Display MX current value when running mode;
※ Preset Value V3, display code A03 when stopping mode and display current value (as example V3=00111)
when running mode;
※ Press “SEL+←→” button can convert between display1 and display2.
※ MX and V0~V3, values range from -32768~32767