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Instrumentation is called as a Heart of Automation. The answer of this, is in the definition of the Instrumentation. Instrumentation is the collective term used for measuring instruments that are used for indicating, measuring and recording physical quantities such as flow, temperature, level, distance, angle or pressure. To make a process automatic we first need to know, measure, or record the process variables. And without knowing or measuring the physical quantities or changes in it we can't control the process, That's why instrumentation is called  Heart of  the Automation.

Hello All, In Today's post i am going to tell you about series of AB PLC with their I/O capacity and supporting software's . AB PLC are categorized into 7 PLC series depending on their I/O capacity and memory and other functionality. So depending on the series it has various communication software's (like RSlinxGateway, RSlinxClassic), Programming software's (Like PicoSoft, RSlinx500 English Pro,RSlinx5 English Pro, RSlinx 5000 English Pro) and a Simulation Software(Like RSLogix Emulate500, RSLogix Emulate5 and RSLogixEmulate5000) 1) Pico Series:- The first series of AB PLC is a Pico series. This series of AB PLC comes with maximum 32 I/O capacity depending on the customer requirement. For communicating the programming devices to the PLC we need a RSLinx Gateway software , and for programming the ladder logic we need Pico soft . The Pico series does not provide support for simulation so it doesn't have a simulation software.  As the Pico ...

1. Accuracy :- It is a degree of Closeness with which the reading on the instrument approaches to the true value of the quantity to be measured. eg. :- Suppose you have a conductor which diameter is of 3.325 mm exactly. now when you measure it by a micrometer whose least count is of 10 micro meter or a 0.01 mm, then you may get the reading as 3.32 mm which is somewhat correct, but not accurate. so to measure it you need a micrometer whose least count should be 1 micro meter(0.001 mm) or a 5 micro meter(0.005 mm ) then you can get more accurate readings.

Static and Dynamic characteristics  are the Performance characteristics of instrument. "Performance characteristic of instrument is nothing but the characteristic observed during test or during operation of the instrument."

If you want to learn and practice your PLC ladder logic and don't have a Hardware of PLC.!!! So in this post I will show you, how to configure your programming software, that is I will show you how to Configure RSlogix500 english pro with RSLogix Emulate500 simulation software, So you can practice you ladder logic without PLC hardware.

SCAN TIME :-  Scan Time is nothing but the time taken by the processor to sense first input of the program and execute last output of the program. The unit of Scan Time is Bits/Sec.

Timer :- Timer is nothing but a specialized clock in a programming software used to count the preset time intervals. In   Siemens PLC we have various ty pes of timers as :- 1) S_PULSE(Pulse timer), 2) S_PEXT(Extended Pulse Timer), 3) S_ODT(On Delay Timer), 4) S_ODTS(Retentive On Delay Timer), 5) S_OFFDT(Off Delay Timer). You must find out another five instruction sets in Timer Block in Simatic Manager STEP 7 as :- -(SP) pulse timer coil, -(SE) extended pulse timer coil, -(SD) on delay timer coil, -(SS) retentive on delay timer coil, -(SF) off delay timer coil. 1) S_PULSE(Pulse timer) :- S_PULSE Timer   Above Fig Shows how to use this timer in programming software,in this fig i have used 5 sec as a preset value, If you want to change it replace the 5 with any duration you want in S5T# 5 S.    In S_PULSE timer if input to timer is ON then timer starts Counting time as well as we get the Output at the instant the input is made ON. In t...