Hioki SS7012, Operation Manual

Page: 6 / 20

SS7012 Remote Interface Overview
2
Figure 1 shows a block diagram of the SS7012 remote interface.
Operating
principle
Communication between a personal computer and the SS7012 is virtual RS-232
serial communication. While the USB interface is installed as the transmission
route, actual communication uses RS-232.
It is necessary to issue RS-232 commands via the virtual COM port.
When RS-232 commands are issued to the virtual COM port, commands are
sent to the SS7012 in the following order. (For the receipt of data, the order is
reversed.)
SS7012 Remote Interface Overview
USB signal
Virtual COM
(Virtual RS-232C) port
USB
⇔
RS-232 conversion
application
USB A connector
Central processing unit
(CPU)
USB
⇔
RS-232
conversion device
USB B connector
USB signal
USB device driver
Communication terminal
software or application software
RS-232
compatibility signal
USB cable
Baud rate : 9600bps (fixed)
Data bit : 8bit (fixed)
Parity : none (fixed)
Stop bit : 1 (fixed)
Flow control : none (fixed)
SS7012 Personal Computer (PC)
Figure 1: Overview block diagram of the SS7012 remote interface
(PC internal) Virtual COM port
(Communication signal via RS-232)
(PC internal) USB
⇔
RS-232 data conversion
USB
(SS7012 internal) USB
⇔
RS-232 conversion device
(SS7012 internal) CPU
(Communication signal via RS-232)
Sending a command
Receiving data