Plasmatronics D232 User Manual

send commands through it to the Dingo. Some com-
mands will result in the Dingo sending data back to the
computer. The D232 also has a loopback command.
Default communication settings:
9600 baud, 8 data bits, Even parity, 1 stop bit. (Modbus
defaults). All communication is Modbus RTU mode.
Modbus ASCII mode is not supported. Default modbus
slave address: 8 Allowed slave addresses: 1-247.
For further information about changing the settings
read the information fi les on the memory stick supplied
or visit www.plasmatronics.com.au
SPECIFICATIONS
Line Speeds 1.2, 2.4, 4.8, 9.6,19.2 KBaud
RS232 input levels required >+/- 5V
RS232 drive levels >+/-5V
Min. Load Impedance 3K
Output impedance (TX) 1000 ohm
DC Isolation 500V
Temperature range -20 to +70
Supply current 5mA (from Dingo supply)
1.5mA from RS232 TX line
o
C
D232
Computer Interface for Dingo controllers
The D232 is a device to allow the Dingo to communi-
cate with a modem or computer via an RS232 serial
port.
Description
The D232 is primarily intended for data communication be-
tween a computer and a Dingo via a modem. It allows serial
communication at speeds from 1200 to 19200 baud. The line
speed (baud rate) is adjusted using a computer. It is stored
in the D232 and is retained when the power is disconnected.
The modem (or computer if no modem) baud rate must be
the same as the baud rate set on the D232 for communica-
tion to occur. The RS232 port on the D232 is electrically
isolated. This reduces the risk of ground confl icts. The Dingo
D232
V
DINGO
Serial Interface
BOOST
Dcab
Cable
T
Modem
Serial Cable
Link
Modem