B&B Electronics ESR901 Specifikace stáhnout pdf (Strana 63)

10. Glossary Vlinx MESR9xx Modbus Gateway

Page 59 Manual Documentation Number MESR9xx-0109m

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Term Definition

Parity Bit

A binary digit that is added to ensure that the number of bits with value of

one in a given set of bits is always even or odd. It may also be a Mark (1), or

a Space (0).

PDU

Protocol Data Unit

RS-232

Interface between Data Terminal Equipment and Data Circuit-Terminating

Equipment Employing Serial Binary Data Interchange

RS-422

Electrical Characteristics of Generators and Receivers for Use in Balanced

Digital Point to Point Systems

RS-485

Electrical Characteristics of Generators and Receivers for Use in Balanced

Digital Multipoint Systems

RTU

Remote Terminal Unit

Stop Bit

Number of bit times after a character is transmitted before the next character

can start transmission.

TCP

Transmission Control Protocol

Unit ID

Unit Identifier. This is the same as the slaves address.

VESR

B&B’s Second Generation Ethernet Gateway Line

Vlinx

B&B’s family name for the Gateway line

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B&B Electronics ESR901 Specifikace Strana 63