LS RS485/Modbus-RTU - Communication Specification; Product Detail

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2.3. Communication Specification
Items Specifications
Communication speed 1200 /2400/4800/9600/19200/38400 bps Selectable
Control procedure Asynchronous communication system
Communication system Half duplex system
Character system RS485 : ASCII(8bit), Modbus-RTU : Binary (7/8 bit)
Start/Stop bit Start 1bit, Stop 1/2bit
Error check
RS485 : Checksum(2byte)
Modbus-RTU : CRC16(2byte)
Parity check
Even/Odd
3.
3.1.
PRODUCT DETAIL
Layout and detail
Name Description
Connector Connector to inverter main PCB
P Comm. signal - high
N Comm. signal – low
GND Comm. Ground
S Shield
T1
Signal connection
terminal
Communication
signal
connection
terminal
T2
Connect a internal termination resistor
Short T1 and T2
Figure 1. SV-iP5A RS485/Mudbus-RTU Option Card Installation