Page 62
HV/HW-C/CP Series
Inch screw
#4
-
40UNC
TXD 2
RXD 3
RTS 7
CTS 8
DSR 6
GND 5
RXD
TXD
RTS
CTS
DSR
GND
16.3. HVW-03C, RS-232C Interface
The HVW
-
03C enables duplex communication using the RS
-
232C interface.
The DCE (Data Communication Equipment) connector is type DSUB-9P.
To connect the HVW
-
03C to an external device, it is necessary to use a commercially available
communication cable.
AX
-
KO2466
-
200 (
2
m) / AX
-
KO2466
-
500 (
5
m) / AX
-
KO2466
-
1000 (
10
m)
When confirming the communication format, refer to "
16.5. Communication format
".
Pin assignment
Pin No. Signal name of DCE side Direction
Description
1
No
connection
2 TXD Transmit
data
3 RXD Receive
data
4
No
connection
5 GND Signal
ground
6 DSR
Data set ready
7 RTS Request
to
send
8 CTS Clear
to
send
9
Used
internally
Inside of the scale
Terminal example of
DCE side
the external device
DTE
side
Transmission EIA
RS
-
232C
Transmission form Asynchronous, bi-directional
Data format
Baud rate :
2400
,
4800
,
9600
bps
Data length :
7
bits or
8
bits
Parity
:
1
bit EVEN, ODD
Data length is
7
bits
NONE (Non-parity) Data length is
8
bits
Start bit :
1
bit
Stop
bit
:
1
bit
Code
:
ASCII
Bit format for data 7 bits
LSB
0
1
2
3
4
5
MSB
6
LSB
0
Start bit
Data bits
Parity
Stop bit
Bit format for data 8 bits
LSB
0
1
2
3
4
5
6
MSB
7
LSB
0
Start bit
Data bits
Stop bit
1 (
-
15
V to
-
5
V )
0 (
5
V to
15
V )
1 (
-
15
V to
-
5
V )
0 (
5
V to
15
V )
Summary of Contents for HV-C Series
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