DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

2.9 S Relay

 

Initial step relay

Starting instruction in Sequential Function Chart (SFC).

 

S0~S9, total 10 points.

Zero return step relay

Returns to zero point when using IST instruction in program. Zero

 

return step relays not used for IST instruction can be used as

 

general step relays.

 

S10~S19, total 10 ponits.

Latched step relay

In sequential function chart (SFC), latched step relay will be saved

 

when power loss after running. The state of power on after power

 

loss will be the same as the sate before power loss.

 

S20 ~ S127, total 108 points.

General purpose step relay General relays in sequential function chart (SFC). They will be

 

cleared when power loss after running.

 

S128 ~ S911, total 784 points.

Alarm step relay

Used with alarm driving instruction API 46 ANS as an alarm

 

contact for recording the alarm messages or eliminating external

 

malfunctions.

 

S912 ~ S1023, total 112 points.

2.10 T (Timer)

 

The units of the timer are 1ms, 10ms and 100ms and the counting method is counting up. When the present value in the timer equals the set value, the associated output coil will be ON. The set value should be a K value in decimal and can be specified by the content of data register D.

The actual set time in the timer = timer resolution× set value

Ex: If set value is K200 and timer resolution is 10ms, the actual set time in timer will be 10ms*200 = 2000ms = 2 sec.

General Timer

The timer executes once when the program reaches END instruction. When TMR instruction is executed, the timer coil will be ON when the current value reaches its preset value.

When X0 = ON, TMR instruction is driven. When current value achieves K100, the assocailte timer contact T0 is ON to drive Y0. If X0 = OFFor the power is off, the current value in T0 will be cleared as 0 and output Y0 driven by contact T0 will be OFF.

 

X0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TMR

T0

K100

 

 

 

 

 

 

 

 

 

 

 

T0

 

 

 

 

 

 

 

 

 

 

Y0

 

10 sec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X0

 

present

 

 

K100

 

 

 

 

 

 

 

 

T0 value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Timer