Answer / amit gathiya

A Protocol is basically a convention of standard which
controls the connection and the connections and data
transfers associated with it. It governs the syntax,
semantics and synchronization used in computing.

There are a number of protocols used in computing. The most
popular ones being the following:

Telnet (Telnet Remote Protocol)
SSH (Secure Shell Remote Protocol)
IP (Internet Protocol)
UDP (User Datagram Protocol)
TCP (Transmission Control Protocol)
DHCP (Dynamic Host Configuration Protocol)
HTTP (Hypertext Transfer Protocol)
FTP (File Transfer Protocol)
POP3 (Post Office Protocol 3)
SMTP (Simple Mail Transfer Protocol)
IMAP (Internet Message Access Protocol)

Answer / bhuvana

TCP- COMMUNICATION PROTOCOL
IP-iNTERNET PROTOCOL
HART PROTOCOL
FIELD BUS
PROFIBUS

Answer / rajesh j

PROFIBUS - Siemens products
MODBUS - Modicon products
RIO - Remote I/O bus (general)
DH+ - Allen Bradley products (Generally)
FIELD BUS - Open bus communication in DCS
FF BUS - Foxboro Field Bus (foxboro products)
CAN Bus - ALSTOM products (Pls confirm)
RS232/ RS485 /RS422
HART - Rosemount products
BT - Brain Terminal for Yokogawa products
Others - Ethernet
TCP/IP

Answer / gaji

* Protocol is used transfer data from one place to
another place.
* There are many types of protocols.
* The main two types of protocols are IP and TCP.
* The other type of protocols are below

- Telnet Remote Protocol
- User Datagram Protocol
- Hypertext Transfer Protocol
- File Transfer Protocol
- Simple Mail Transfer Protocol
- Post Office Protocol 3

* In computers a protocol is basically a principle
or standard which either controls or permits the
connection, communication and transmission of data between
two diverse computing endpoints.

Answer / rajesh yadav

protocols are ste of rules.these are used to communicate
between different networks.there are two different type of
protocol.
1>routed protocol
2>routing protocol

Answer / vasu

protocols r more than 20 types, it cant detailed here,
depond of application it various for different field

why 4 to 20 ma ,why not 0 to 20 or 3 to 15 or anything

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