A&D Weighing FC-500Si - Manual (Page 70)

13-4. OP-04 RS-232C and Comparator Relay Output
Multiple RS-232C interfaces and relay output for the comparator results are obtained
by installing OP-04.
OP-04 Installation
‰ See the OP-03 installation.
‰ OP-04 is installed to the same slot as option OP-03.
‰ The RS-232C specifications are same as the standard RS-232C interface.
Refer to “
12. RS-232C SERIAL INTERFACE”.
Comparator Relay Output
RS-232C Ch. 1
Comparator Relay Output Circuit
Maximum rating of the Relay Output
The maximum rating of the replay output is as follows.
‰ Maximum voltage:
50V DC
‰ Maximum current:
100mA DC
‰ Maximum ON resistance: 8 Ω
Inside of the Scale
Output connector
MSTB 2.5/4-GF-5.08 Solid state relay
Mating connector
MSTB 2.5/4-STF-5.08
(Attached to the OP-04)
1 2 3 4
7 mm
1 COM
LO
2 LO
3 OK
OK
4 HI
HI
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