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3 Communication Specification
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3
Communication Specification
Comm. protocol
Modbus RTU (16bit CRC)
Connection type
RS485
Application standard
Compliance with EIA RS485
Max. connection
31 units (address: 1 to 127)
Synchronous method
Asynchronous
Comm. type
Two-wire half duplex (half duplex)
Comm. distance
Max. 800m
Comm. speed
2400, 4800, 9600 (factory default), 19200, 38400bps
Comm. response time
5 to 99ms (factory default: 20ms)
Start bit
1-bit (fixed)
Data bit
8-bit (fixed)
Parity bit
None (factory default), Even, Odd
Stop bit
1, 2-bit (factory default: 2bit)
It is recommended to use communication converter RS232C to RS485 (SCM-38I, sold
separately), USB to RS485 (SCM-US48I, sold separately). Communication cable should be
twisted pair cable for RS485 communication.
Summary of Contents for CT4S-2P series
Page 1: ...Programmable Counter Timer User Manual CT Series CT Series CT Series ...
Page 2: ...내 ii Copyright Reserved Autonics Co Ltd ...
Page 8: ...Cautions During Use 나 viii Copyright Reserved Autonics Co Ltd ...
Page 16: ...1 Product Overview 16 Copyright Reserved Autonics Co Ltd ...
Page 20: ...3 Communication Specification 20 Copyright Reserved Autonics Co Ltd ...
Page 24: ...4 Dimensions 24 Copyright Reserved Autonics Co Ltd ...
Page 36: ...5 Guide For Connection 36 Copyright Reserved Autonics Co Ltd ...
Page 42: ...6 Basic Operations Counter Timer Communication 42 Copyright Reserved Autonics Co Ltd ...