Chroma 63200 Series User Manual

Basic Information for Programming
5-1
5. Basic Information for Programming
5.1 Introduction
The following sections describe how to program the 63200 series electronic load remotely
from a GPIB controller or RS-232. The command set introduced here can be applied to all
63200 series electronic loads.
Either GPIB or RS-232 can be used one at a time. They cannot be used simultaneously. If
GPIB is used first in remote control, RS-232 will be disabled unless the machine is reset, and
vice versa.
Do not hot swap the communication cables such as GPIB, RS232,
RS-485 and BNC when the instrument is not grounded to earth.
5.1.1 Setting the GPIB Address and RS-232 Parameters
The electronic load is shipped with the GPIB address set to 5. The address can be only
changed via the “SYS” functional list menu (please see section 4.2.9). This menu is also
used to select the RS-232 interface, and specify the parameters such as baud rate and parity.
5.1.2 Wire Connection of RS-232
The Electronic Load is shipped with the baud rate set to 115200, parity set to is None, and
data length 8 bits, stop1 bit. For RS-232 interface, only TxD and RxD signals are used for
data transfer. The RS-232 connector is a 9-pin D male connector. Following table shows
you the RS-232 connector pins and signals.
Table 5-1
Pin No.
Input/Output
Description
1
---
+5V
2
INPUT
RxD
3
OUTPUT
TxD
4
OUTPUT
DTR
5
---
GND
6
INPUT
DSR
7
OUTPUT
RTS
8
INPUT
CTS
9
---
+5V
The connection between the computer (IBM PC compatible) and the Electronic Load is
illustrated below:
CAUTION

Chroma 63200 Series Specifications

General

Brand	Chroma
Model	63200 Series
Category	Test Equipment
Language	English