Delta DVP-EX2 Operation Manual page 268

D V P - E S 2 / E X 2 / E C 5 / S S 2 / S A 2 / S X 2 / S E / S E 2 & T P O p e r a t i o n M a n u a l - P r o g r a m m i n g
Program Example:
When PLC runs, MTR instruction executes. The status of input points X40-X47 is read 2 times in
the driven order of output points Y40 and Y41, i.e. 16 signals will be generated and stored in
internal relay M10-M17 and M20-M27.
M1000
MTR
The figure below illustrates the external wiring of the 2-array matrix input loop constructed by X40
to X47 and Y40 to Y41. The 16 switches correspond to the internal relays M10 to M17, M20 to
M27. The wiring should be applied with MTR instruction.
Diode
0.1A/50V
Internal relays
24G +24V S/S
When output Y40 is ON, only inputs in the first array are read. The results are stored in auxiliary
relays M10-M17. After Y40 goes OFF, Y41 turns ON. This time only inputs in the second array are
read. The results are stored in M20-M27.
Read input signal in the 1st array
Y40
1 3
Read input signal in the 2nd array
Y41 2
Processing time of each array: approx. 25ms
3 - 1 3 2
X40 Y40 M10
M20 M21 M22 M23 M24 M25 M26 M27
X41 X42 X43
M10 M11 M12 M13 M14 M15 M16 M17
X40 X41 X42 X43
C
Y40 Y41 Y42 Y43
4
25ms
K2
X44 X45 X46 X47
X44 X45 X46 X47
Y44 Y45 Y46 Y47