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98
AD-4404
9.4.
9.4.
9.4.
9.4.
Built
Built
Built
Built----in Current L
in Current L
in Current L
in Current Loop Output
oop Output
oop Output
oop Output
The interface can be used to connect a printer or external monitor.
Specifications
Transmission system
EIA RS-232C, Asynchronous, bi-directional, half-duplex
Current
1 = 20mA, 0 = 0 mA, external DC current source
Data length
7 bits
Start bit
1 bit
Parity bit
Even
Stop bits
1 bit
Baud rate
600 bps, 1200 bps, 2400 bps
Code ASCII
code
9.4.1.
9.4.1.
9.4.1.
9.4.1.
Connection
Connection
Connection
Connection
The current loop output has no polarity.
Use an external DC current source.
Connect the FG terminal when using a shielded cable.
9.4.2.
9.4.2.
9.4.2.
9.4.2.
Communication Modes
Communication Modes
Communication Modes
Communication Modes
There are six following.
Stream Mode
The data is output on each display update. If the data can not be output completely
due to a slow baud rate, the data is output at the next update.
Auto Print Mode
The comparison result is printed automatically.
Manual Print Mode
When the preset print key is pressed or terminal is connected, data is output.
Current loop Output
RS-485
A
B
SG
C.LOOP
FG
Shield
Current loop Output
AD-4404 inside
The CURRENT
LOOP terminals do
not have polarity.
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