PLC Standards in India?

No.

I don't know about India. ISO has not released one as of yet.

IEC standard 61131 is widely recognized and used.

Standard IEC 61131 is divided into several parts:^[1]

• Part 1: General information
• Part 2: Equipment requirements and tests
• Part 3: Programming languages
• Part 4: User guidelines
• Part 5: Communications
• Part 6: Functional safety
• Part 7: Fuzzy control programming
• Part 8: Guidelines for the application and implementation of programming languages

Related Standards[edit]

IEC 61499 Function Blocks

PLCopen has developed several standards and working groups.

• TC1 - Standards
• TC2 - Functions
• TC3 - Certification
• TC4 - Communications
• TC5 - Safe Software
• TC6 - XML
• Motion Control Library
• Presentation on IEC 61131-3

Software design standard below.

there is not much standardization on the hardware end, why would you need it. the programming and the communications protocol is what needs to be standard, the hardware that a manufacturer uses to make it work is not really that important.

ThanX

Hardware standard if there ,we can reject the unreliable manufactures,Siemens, AB, ABB

GE must be maintaining some standards, If some standards exist, It will help me.

To claim that Siemens is an unreliable manufacturer is abstruse and unwarranted.

Statement joined together makes different sense, Actually companies in list are good companies maintain some standard, If the same is known then it is good .

When made for India, everything is possible. No standards and users have no rights.

Sell your any (low)standard product and make easy money.

Gajanan Phadte