Protocols_ Modbus_Hart_Profibus_Profinet

_____ is a request/reply protocol and offers services specified by function codes

The ____Protocol makes uses Frequency Shift Keying (FSK) standard to superimpose digital communication signals

________was defined in 1991/1993 in the standard DIN 19245, was carried over to the standard EN 50170 in 1996 and since 1999 has been defined in the standard IEC 61158/IEC 61784.

_____ protocol and Standard-Ethernet devices can be mixed in one network

_________ protocol works over both ethernet and serial communication.

Profibus protocol can accommodate up to ____ number of devices in a single network.

Profibus and Profinet protocols are developed by _____

• Emerson

• Rockwell

• Siemens

• Cisco