Autonics AiCA Series, User Manual

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2 Specifications
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2.1.2 Communication Output
It is for parameter setting and monitoring via external devices (PC, PLC, etc.)
2.1.2.1 Interface
Comm.
Protocol
Modbus RTU
Comm. Speed
9600, 19200, 38400, 57600,
115200 bps
Connection
type
RS485
Comm. Response
wait time
5 to 99 msec
Application
standard
Compliance with EIA RS485
Start bit
1-bit (fixed)
Max.
connection
31units (address: 01 to 31)
Data bit
8-bit (fixed)
Synchronous
method
Asynchronous
Parity bit
None, Even, Odd
Comm. Method
Two-wire half duplex
Stop bit
1-bit, 2-bit
Comm.
distance
Max. 800m -
It is not allowed to set overlapping communication address at the same communication
line.
Use twisted pair wire for RS485 communication.
2.1.2.2 Application of System organization
It is recommended to use Autonics communication converter;
SCM-WF48 (Wi-Fi to RS485·USB wireless communication converter, sold separately),
SCM-US48I (USB to RS485 converter, sold separately),
SCM-38I (RS232C to RS485 converter, sold separately).
Please use twisted pair wire, which is suitable for RS485 communication, for SCM-WF48,
SCM-US48I and SCM-38I.