Hioki PW3336 - RS-232 C Settings and Connection (before Using Command Communications)

4.1 RS-232C Settings and Connection (Before Using Command Communications)
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This section describes how to control the instrument using its RS-232C interface.
Items to verify before configuring settings and connecting to the instrument
Specifications
Code used: ASCII code
4.1 RS-232C Settings and Connection
(Before Using Command Communications)
• Always turn both devices OFF when connecting and disconnecting an interface con-
nector. Otherwise, an electric shock accident may occur.
• To avoid damage to the instrument, do not short-circuit the terminal and do not input
voltage to the terminal.
• Be sure to connect the cable to the target device’s RS-232C connector. Connecting
the cable to a connector with different electrical specifications may cause electric
shock or equipment damage.
After connecting, always tighten the connector screws. If the connector is not secured, oper-
ation may fail to meet specifications, and damage could result.
Caution
Use the LAN, RS-232C, or GP-IB interface. Using multiple interfaces simultaneously may cause the instru-
ment to malfunction, for example by interrupting communications.
RS-232C
Communication Method Full duplex
Start-stop synchronization
Communication Speed 9600bps/38400bps
Data Bits 8 bits
Parity None
Stop bit 1bits
Message terminator (delimiter) During Receiving : LF
During Sending : CR+LF (can be switched to LF)
Flow control None
Electrical Specifications Input voltage level 5 to 15 V : ON
-15 to -5 V : OFF
Output voltage level +5 V or greater : ON
-5 V or less : OFF
Connector Pin configuration of the interface connector
(Male 9-pin D-sub #4-40 attaching screws)
The I/O connector is a DTE (Data Terminal Equipment) configuration.
Recommended cable:
• 9637 RS-232C Cable (for a computer)
• 9638 RS-232C Cable (for a D-sub 25-pin connector)
See: Connecting the RS-232C Cable (p.120),
Connecting the cable to the GP-IB connector (p.132)
Note: When using a USB-serial converter to connect the instrument to a com-
puter, you may need a gender converter and a straight-cross converter.