4 RS-232C communications
4.1 Cautions before use
ES-51
49
4
RS-232C communications
This chapter describes the use of RS-232C
communications and its communication commands.
4.1
Cautions before use
Use caution regarding the following points, when using
RS-232C communications.
・
Use the following designated cable for connecting to
the computer.
Part name: PC cable for 50 Series
Part number: 9096004800
・
Make sure that the data transfer formats for the meter
and computer match. The following data transfer
format is used by the meter.
Baud rate: 2400 bps
Character length: 8 bits
Parity: None
Stop bits: 1
If the data transfer formats differ, communications errors
may occur or the on-line mode may not start up, and RS-
232C communications cannot proceed normally. If the
transfer format is changed, turn the power to both the
meter and the computer OFF, and then ON again.
・
When creating a program for RS-232C, put the meter
in the ON-LINE mode by entering an on-line
command
at the beginning of the program. The control switches
become invalid when the meter is in the ON-LINE
mode, and the RS-232C Communications mode is
enabled (“LOCK” is displayed.) The ON-LINE mode is
cleared when the power is turned OFF.
