PLC Is Programmable Control System Which Reduced Complex Hardwired Relay Logic. Programmable Logic Controller (PLC) Store Instructions To Control Industrial Machines, Systems And Processes. Controlling Process Is Depends On Inputs, Outputs Condition Of System.

Fuji SX-Programmer Standard Have Four Type Of Timer Instruction On-Delay Timer, Off - Delay Timer, Pulse Timer, Retentive Timer. Address For These Timer Is Timer No Preset Value Separated By Space. You Can Insert Your Timer Instruction From Instruction Jog.

he timer is most commonly used PLC instruction. Timers set the output to 1 at specific time intervals which is called preset time. when input of timer condition is true than timer start running until preset value reached. Output coil represent the timer in a program .

string data type store character . range of character for string data types is 0 to 255. in brackets you can declare range of character. Siemens Complex data types . string is one dimensional array with a maximum 254 character.

Data Blocks Only Stored User Data,In Data Blocks You Can Not Write Any User Program, Instructions, Logic Or Statement It Only Contains User Data.Data Blocks Stored Any Type Of Defined User Data. User Data May Be INT, DINT,Array,Udt, Float, String Etc.

data type store value in memory space, each data type have reserved space of memory. When you define data types to a identifier, so data type reserved space for your identifier and show how values are interpreted to identifier.

Counter Counts Inputs Bit When Bit Changes From 0 To 1 And Counts Are Increment Or Decrement By One Total No Of Count Value Is Stored On Counter Accumulator Value.

Arithmetic Instruction Such As Addition, Subtraction, Multiplication, Division Etc., These Instruction Have Two Input Variable And One Output Variable. Data Type Allowed In Arithmetic Instruction INT, Double INT (DINT), Real AND Constant Value.

Comparison Instructions Perform Comparison Between Two Input Value Of Same Data Type. If The Comparison Result True Than Output Set To 1 Otherwise Output Set To 0 Or False.

A Data Type Specifies Which Type Of Value Stored In Memory Of PLC. Data Type Have Fixed Type Of Property. Each Data Type Has A Defined Length. Data Types Requires Different Amounts Of Memory And Has Some Specific Operations Which Can Be Performed Over It.