C a u t i o n
Chapter 4 Remote Interface Reference
RS-232 Interface Configuration
RS-232 Interface Configuration
See also “Remote Interface Configuration,” on page 91 in chapter 3.
You connect the multimeter to the RS-232 interface using the 9-pin (DB-9) serial connector on the rear panel. The multimeter is configured as a DTE (Data Terminal Equipment) device. For all communications over the RS-232 interface, the multimeter uses two handshake lines:
DTR (Data Terminal Ready) on pin 4 and DSR (Data Set Ready) on pin 6.
The following sections contain information to help you use the multimeter over the RS-232 interface. The programming commands for RS-232 are listed on page 153.
RS-232 Configuration Overview
Configure the RS-232 interface using the parameters shown below. Use the front-panel I/O MENU to select the baud rate, parity, and number of data bits (see also pages 163 and 164 for more information).
• |
Baud Rate: 300, 600, 1200, 2400, 4800, or 9600 baud (factory setting) |
• |
Parity and Data Bits: None / 8 data bits |
|
Even / 7 data bits, (factory setting) or |
|
Odd / 7 data bits |
•Number of Start Bits: 1 bit (fixed)
•Number of Stop Bits: 2 bits (fixed)
Do not use the RS-232 interface if you have configured the multimeter to output pass/fail signals on pins 1 and 9. Internal components on the RS-232 interface circuitry may be damaged.
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