4
2.3 Communication Specification
Items
Specifications
Communication speed
1200 /2400/4800/9600/19200/38400/76800/115200 bps
3
Control procedure
Asynchronous communication system
Communication system
Half-duplex system
Character system
LS485
: ASCII(8bit)
Modbus-RTU: Binary (8 bit)
Metasys-N2: ASCII (8 bit)
Start/Stop bit
Start 1bit, Stop 1/2bit
Error check
LS485
: Checksum (2 byte)
Modbus-RTU: CRC16 (2 byte)
Metasys-N2: CRC 16 (2 byte)
Parity check
None/Even/Odd
4
3. Product Details
3.1 RS485 Option Board Layout and Names of Part
Figure 1. Layout and Names of Part
3.2
Status LED
CPU LED (LED1)
Indicates the option card works normally.
RXD LED (LED3)
Receiving communication signal
TXD LED (LED2)
Transmitting communication signal
ERR LED (LED4)
Blinking intermittently
Receiving wrong DATA (Normal operation)
Blinking simultaneously with CPU
LED
Communication malfunction between drive
and option board
Blinking oppositely to CPU LED
Network Connection Time Out
3
Metasys-N2: Fixed 9600 bps
4
Metasys-N2: Fixed No Parity
Protocol
Selecting S/W
Connector
Comm.
Connection
Terminal Block
ON
OFF
SW1
L
E
D
4
E
D
1
Support puts
L
E
D
2
L
E
D
3
L
Terminal
SW
Green
TXD
Green
RXD
Green
CPU
Red
Error
Summary of Contents for SV-iP5A Series
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