Micromod MOD: MODBUS RTU Communications Guide User Manual

Page 30

Advertising
background image

MODBUS RTU

COMMUNICATIONS GUIDE

26

PC

Personal Computer

Receive

Incoming communication signal. (Rx)

RTS

RequestToSend hardware handshaking signal. Used with ClearToSend.

Rx

See Receive

RxA

Usually the negative Receive line. May vary with manufacturer. Also see
Receive

RxB

Usually the positive Receive line. May vary with manufacturer. Also see
Receive

Signed Integer

Whole number value represented by 16 bits (-32768 to 32767)

Transmit

Outgoing communication signal. (Tx)

Tri-State

The ability of a communications transmitter to turn its circuitry off, reducing
the load on the network

Tx

see Transmit

TxA

Usually the negative Transmit line. May vary with manufacturer. Also see
Transmit

TxB

Usually the positive Transmit line. May vary with manufacturer. Also see
Transmit

Unsigned Integer

Positive whole number value represented by 16 bits (0 to 65535)

Word

A group of 16 bits

Xon/Xoff

Software implementation of data flow control

Advertising