Direct Connection Between Rs485 And Rs232 Without Converter; Test - LAUMAS TLU Installation And User Manual

DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER

Since a two-wire RS485 output may be used directly on the RS-232 input of a PC or remote display,
it is possible to implement instrument connection to an RS-232 port in the following manner:
INSTRUMENT
RS485 – →
GND →
This type of connection allows A SINGLE instrument to be used in a ONE WAY
mode.
- Input Test:
: ensure that for each open input is displayed,  is displayed when the input is closed.
- Output Test:
: setting  ensure that the corresponding output opens. Setting  ensure that the
corresponding output closes.
- Analog Output Test: (TLUANA MODEL ONLY)
: It allows the analog signal to range between the minimum and the maximum values
starting from the minimum.
: current output test.
: voltage output test.
- Millivolt Test:
: displays the load cell response signal in mV with four decimals.
RS232
RXD
GND

TEST

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