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SEFELEC1500M Instructions
140
V1.06
15.
RS232C INTERFACE
NOTE
The RS232C function must be selected in the configuration menu,
INTERFACE line: RS232
The test and measuring instruments of the SEFELEC series are equipped with an interface of
the RS232C type that operates in speaker and talker mode. It allows all of the instruments in
the range to be integrated into an automatic test or measuring system, whether intended for
manufacturing control or for input control.
Implementing the safety loop circuit is indispensable. Controlling the device
via RS232C and therefore generating a dangerous voltage can be done from a point
where visual control on the device is not possible.
Use a standard DB9 male to DB9 female standard lead that is uncrossed and preferably
shielded to connect the device to the PC. The Sefelec CO179 cord is not compatible
with this device.
The interface can be accessed through a 9-point female connector located at the rear of the
device. The RS232C standard describes the hardware aspects for the serial transmission of
data. This requires five lines which are:
Receive data
RXD
Transmit data
TXD
Terminal ready to receive
DTR
Data ready to be transmitted
DSR
Ground signal
GND