197
18-3. Interface
External control input Any nine of the following functions can be selected.
OFF, [ON/OFF] key operation, [SET] key operation, [ACCUM.] key operation,
[PRESET TARE/ ] key operation, [TARE/▲] key operation, [NET/GROSS/▼]
key operation, [ZERO] key operation, [F/ ] key operation, Zero clear, Tare
clear, Flow start, Discharge start, Clear last accumulated data, Accumulation
clear, Error cancellation, Print command, Emergency stop, All brand
accumulation clear
* The above are valid for one time for a pulse input with a pulse width of at
least 50 ms.
Flow/Discharge changeover, Hold, Net weight display, Brand No. 1, Brand No.
2, Brand No. 4
* The above are valid for input with level input shorted for at least 50 ms.
External control
output
13 functions in the following can be arbitrarily selected.
OFF, RUN, Stable, During canceling the Tare weight, Display of gross, Display
of net, Center zero, During the hold, Error, Abnormal weight, Measuring
sequence error, Z-Band, OK (S0), F-flow (S1), M-flow (S2), Dribble flow (S3),
Over (S4), Under, Full, During weighing, Finish weighing, Discharge (between
the discharge gate), Finish Discharge (between the discharge gate).
Standard 2 wire serial
interface
2-wires method serial interface
Baud rate : 600 bps
Data bit length : 8 bit
Parity bit : Odd number
Stop bit : 1 bit
Start bit : 1 bit
Transmission data : Binary code, BCD
* An internal circuit and photo-coupler are insulated.
* The external control input and common are common.
Standard RS-485
interface
Baud rate : Selectable from 1 200, 2 400, 4 800, 9 600, 19 200 and
38 400 bps.
Data bit length : Selectable from 7 bit and 8 bit.
Parity bit : Selectable from none, even number and odd
number.
Stop bit : Selectable from 1 bit and 2 bit
Terminator : Selectable from CR+LF and CR.
Communication method : Half duplex
Synchronous method : Start stop synchronous method
Address : Select one from 0 to 31.
Communication data : ASCII code
Cable length : Approx. 1 km
Connectable units : 32 units at maximum
Terminating resistance : Externally
Data transfer mode: Command, Modbus, Stream, Synchronizing with finish,
Synchronizing with accumulation, Synchronizing with print
* Internal circuit and common are common.
BCD output (Sold
separately.)
Output
BCD 8 digits, parallel output with polarity (POL.) applied (Output ON with
minus, and output OFF with plus.), P.C. (Print command), Turning on during
fixed time after conversion of BCD output is completed.
ERROR ON when the various errors occurs. OVER(over), Stable, Gross
weight ON when the BCD output is gross weight.
* Above are open collector outputs. VCE=DC30 V , IC=DC20 mA at Maximum
Input
HOLD Holding the BCD output, BCD-ENABLE Compulsorily turned off for the
output related with BCD. (Hi-impedance)
* Above are level input, and effective during the input of short more than 100
ms.
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