25
RELAY OUTPUT (OPTIONAL)
● The indicator can output 4 signals, which when connected to outside equipment,
can perform an automatic control function and an upper/lower limit alarm function.
● Change parameter setting C33 following Table 6 below:
Table 6: Relay Output Parameter Setting
Output Port Port Definition
Function
C33=0
Out1
Turn off output function
No Output Signal
Out2
Turn off output function
No Output Signal
Out3
Turn off output function
No Output Signal
Out4
Turn off output function
No Output Signal
C33=1
Out1
Turn on overload control function
Output overload control signal
Out2
Turn on compliance control function
Output compliance control signal
Out3
Turn on under-load control function
Output under-load control signal
Out4
Turn on stable control function
Output stable control signal
C33=2,3
Preserved, no function
Table 7 below shows the DB9 port pinout for the relay output option. Please note that
this is optional and only available for the OP-900 indicator ordered with this option.
The relay output option will disable the RS232 weigh data output (serial ASCII data) that
comes in the standard indicator.
Table 7: Relay Output Pin Definition
DP9 Pin
Definition
Port
1
Red
1
st
output signal pin
Out1
6
Red
1
st
output signal pin
Out1
2
Green
2
nd
output signal pin
Out2
7
Green
2
nd
output signal pin
Out2
3
White
3
rd
output signal pin
Out3
8
White
3
rd
output signal pin
Out3
4
Black
4
th
output signal pin
Out4
9
Black
4
th
output signal pin
Out4
Rating:
AC 250V 3A
DC 30V 3A
1
6
2
7
3
8
4
9
