11
6. RS-232C Interface
RS-232C specifications
■
Connector (D-Sub 9 pin, male)
⋆1.
When connected to the AD-4212C / AD-4212, the AD-8551R can be operated by supplying power from the
weighing device.
■
Communication specifications
Item
Setting
Baud rate
[SW-1 No.1, 2]
2400*, 4800, 9600, 19200bps
Data bit
7 bit (fixed)
Parity
EVEN (fixed)
Stop bit
1 bit (fixed)
Terminator
<CR><LF> (fixed)
Code
ASCII
*Factory setting
Connecting cable
Connect with a cable applicable to the individual weighing device. Refer to “3-2. Applicable models”
■
Connection diagram
(
When connected to a weighing device.
)
⋆1.
Depending on the weighing device, RXD and TXD may be shown on the opposite side (weighing device
output: TXD, weighing device input: RXD)
⋆2.
May vary depending on the weighing device.
Pin No.
Signal
Direction
Description
1
(Vs)
Input
Input of power supply 0V
⋆1
2
RXD
Input
Received data
3
TXD
Output Transmission data
4
-
-
N.C.
5
SG
-
Signal ground
6
-
-
N.C.
7
-
-
N.C.
8
-
-
N.C.
9
(Va)
Input
Input of power supply 12V
⋆1
Shell
-
-
Shield
Inch screw
1
2
3
4
5
6
7
8
9
Shell
Shield
Weighing
device
(
DCE
)
RXD
⋆1
TXD
⋆1
SG
AD-8551R
(
DTE
)
RXD
TXD
SG
FG
FG
2
3
5
(Vs)
⋆
2
1
(Vs)
(Va)
⋆
2
9
(Va)