IAI America XSEL-S - Manual (Page 26)

2. Specification
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2. Specification
2.1 SIO type
2.1.1 Communication type
Item Specification
Transmission path structure IAI’s dedicated multi-drop differential communication
Communication method Half-duplex
Synchronization method Start-stop
XSEL-P/Q/PX/QX X-SEL œ SIO converter: EIA (RS)-232
SIO converter œ Each RC controller: EIA
(RS)-485, 2-wire type
Transmission path format
XSEL-R/S/RX/SX
/RXD/SXD
EIA (RS)-485, 2-wire type
(Switchover with system operation switches)
Baud rate 230.4 kbps
Character length 8 bits
Stop bit 1 bit
Parity bit None
Error control method CRC check
Communication cable length Total cable length: 100 m or less
Number of connected axes Maximum 16 axes
Communication cable Twisted pair cable, 2 pairs
(Recommended model: HK-SB/20276×L 2P×AWG22 by Taiyo
Electric Wire & Cable)
Communication protocol Modbus protocol
Transmission mode RTU mode
*CRC: Cyclic Redundancy Check
(A data error detection method commonly used in synchronous transmission)