RS-232 Troubleshooting
In case of connection failure of RS232, perform following check:
Check if the computer and power supply are provided with same
Baud rate, parity check bit, data bit and flow control. The power
supply shall be configured with one start bit (fixed) and one or two
stop bits.
Just as described in the RS232 connector, appropriate interface
cable or adapter shall be adopted. Notes: even if the cable is
equipped with right plug, internal wiring may be incorrect.
The interface cable must be connected to the right serial port (COM1
and COM2) of the computer.
Communication Setup
Please ensure the PC and power supply have the same configuration in the
following items.
baudrate: 9600(4800, 9600, 19200, 38400, 57600, 115200).You could enter the
system menu to set the baudrate.
Data bit: 8
Stop bit: 1
Parity bit: (none, even, odd)
EVEN 8 data bits have even parity
ODD 8 data bits have odd parity
NONE 8 data bits have no parity
Native machine address: (0 ~31, factory default is 0)
Start Bit 8 Data Bits Stop Bit
5.2 USB Interface
Use a cable with two USB ports to connect power supply and PC. You can
program through USB interface to achieve all functions of power supply.
The functions of USB488 interface are as follows:
Interface is 488.2 USB488 interface
Receive the following request: REN_CONTROL, GO_TO_LOCAL, and
LOCAL_LOCKOUT
When the interface receives MsgID = TRIGGER USBTMC command, it will
transmit the TRIGGER command to the function layer
The functions of power supply’s USB488 are as follows:
receive all SCPI commands
device is SR1 enabled
device is RL1 enabled
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