Rice Lake SCT-10 - Manual (Page 30)

26 SCT Weight Transmitter Operator’s Manual
If the RS-485 network exceeds 100 metres in length or baud-rate
over 9600 are used, close the two jumpers, called "RS-485
termination", to activate two 120 ohm terminating resistors
between the ‘+’ and ‘–’ terminals of the line, on the terminal strip of
the furthest instrument. Should there be different instruments or
converters, refer to the specific manuals to determine whether it is
necessary to connect the above-mentioned resistors.
Direct Connection Between RS-485 And RS-232 Without Converter
Since a two-wire RS-485 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:
This type of connection allows a SINGLE instrument to be used in a
ONE WAY mode.
2.6 Outputs And Inputs Configuration
Figure 2-5. Outputs and Inputs Menu Structure
Instrument RS-232
RS-485 - RXD
RS-485 + GND
Note
Note
OUt 1 OUt 2 In 1 IN 2
CLOSE
OPEn
SEt 1
PLC
GrOSS
NEt
2ErO
PEAH
COntI n
PLC
nE-lO
COEFF
2Er0
PEAH
COntI n
PLC
nE-lO
COEFF
CLOSE
OPEn
SEt 2
StAbLE
POS/nEG
POS
nEG
OFF
On
CALIb FILtEr PArA 0 SErIAL tESt Out-In ANA LOG
StAbLE
PLC