14.2 Communications Specifications for Serial Command Communications
14-4
14.2
Communications Specifications for Serial Command Communications
The communications specifications for serial command communications are given in the fol-
lowing table.
Item
Specifications
Interface
Full duplex (RS-422 or RS-485) or half duplex (RS-485)
(Set the appropriate wiring method with parameter PnB00.)
Synchronization
Start-stop synchronization (ASYNC)
Bit Rate
9600, 19200, or 38400 bps
(Selectable with parameter PnB01.)
Start Bits
1 bit
Data Bits
7 bits, ASCII code
Parity Bits
1 bit, even parity
Stop Bits
1 bit
X-ON/X-OFF Control
No
DTR/DSR Control
No
RTS/CTS Control
No
Echoback
Each character, Each command, or None
Select the specification with the PnB00 parameter.
Character string
Data structure
Start bit
Data
Stop bit
Even parity
0 0 1 0 1 0 1 1 0 1