2. Programming Concepts

D1140: Number of right-side modules (AIO, PT, TC, etc.), max. 8 modules can be connected.

D1142: Number of input points (X) on DIO modules.

D1143: Number of output points (Y) on DIO modules.

D1145: Number of left-side modules (AIO, PT, TC, etc.), max. 8 modules can be connected.

(Only applicable for SA2/SX2).

Function Group Reverse Interrupt Trigger Pulse Direction

Number

M1280, M1284, M1286

Contents:

1.The falgs should be used with EI instruction and should be inserted before EI instruction

2.The default setting of interrupt I101 (X0) is rising-edge triggered. If M1280 is ON and EI instruction is executed, PLC will reverse the trigger direction as falling-edge triggered. The trigger pulse direction of X1 will be set as rising-edge again by resetting M1280.

3.When M0 = OFF, M1280 = OFF. X0 external interrupt will be triggered by rising-edge pulse.

4.When M0 = ON, M1280 = ON. X0 external interrupt will be triggered by falling-edge pulse. Users do not have to change I101 to I000.

I001

M0

OUT M1280

EI

FEND

M1000

INC D0

IRET

END

Function Group Stores Value of High-speed Counter when Interrupt Occurs

Number D1240~D1243

Contents:

1.

If extertal interrupts are applied on input points for Reset, the interrupt instructions have the

 

priority in using the input points. In addition, PLC will move the current data in the counters to

 

the associated data registers below then reset the counters.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Special D

D1241, D1240

 

 

D1243, D1242

 

 

Counter

C243

C246

C248

C252

 

C244

C250

C254

 

Interrupt signal

X1(I100/I101)

X4(I400/I401)

 

X3(I300/I301)

X5(I500/I501)

2.

Function:

 

 

 

 

 

 

 

 

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Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Number M1280, M1284, M1286 Contents