9.RS-485 INTERFACE (Communication protocol; Modbus-RTU)
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9. RS-485 INTERFACE
(Communication protocol; Modbus-RTU)
The RS-485 interface is used to read out the indicated value and the state of the
F320 and to write set values into the F320. It is convenient for connecting the
F320 with a PLC/programmable display, etc., to perform processing, such as
controlling, aggregating, and recording.
9-1. Communication Specifications
9-1-1. Standards
Signal level:
Based on RS-485
Transmission distance:
Approx. 1km
Transmission method:
Asynchronous, half-duplex
Transmission speed:
Selectable from 1200, 2400, 4800, 9600, 19200,
and 38400bps
Number of units connected: 32 at maximum(including one master)
Bit configuration:
Start bit:
1 bit
Character length:
Fixed at 8 bits
Stop bit:
Fixed at 1 bit
Parity bit:
Selectable from none,
odd, and even
R
S-485 terminals
A- B+ S.G.
RS-485 signal ground terminal
B4
B5
B6
Summary of Contents for F320
Page 1: ...F320 DIGITAL INDICATOR 17 May 2012 Rev 1 07 OPERATION MANUAL...
Page 14: ...CONTENTS...
Page 120: ...15 DIMENSIONS Standard 106 15 DIMENSIONS Standard Unit mm...
Page 121: ...15 DIMENSIONS Standard 107 15 1 Dimensions When the BCO option is equipped Unit mm...
Page 122: ...15 DIMENSIONS Standard 108 15 2 Dimensions When the DAV DAI option is equipped Unit mm...