VC series bench scales Technical Manual
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8. 2 Interface specification
Transmission method : Serial Data Transmission , Random Access
Transmission speed : 1200/2400/4800/9600bps
Transmission Code : ASCII code, 6/7-bit
Signal level : Base on EIA
RS-232C
HIGH
level : Data logic
“0”
+5 to +15V
LOW
level : Data logic
“1”
-5 to -15V
Contents of a Word : 6/7-bit word based on ASCII standard character codes,
1 start bit,
2 stop bits, 0/1 parity bit.
Parity bit : Nil, or an even parity, or an odd parity
8. 3 Output data format
8.3.1
Data format
By changing the function settings of a scale, the following 2 format is selectable.
①
7-digit format
(4. if. 2)
This is standard format.
②
6-digit format
(4. if. 2)
This effective digit is 6-digit. (Effective digit of data can be 7 digit in VC
series. In this case, the smallest digit can be cut off or an error occurs if
6-digit format is set up.
＊
The setting of output data format can not be controlled from external
devices.
8.3.2
7-digit format
Consists of 15 words, including terminators ; CR = 0DH
，
LF
＝
0AH. Parity bit can
be added under this format.
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
P1 D1 D2 D3 D4 D5 D6 D7 D8 U1 U2 S1 S2 CR LF
8.3.3
6-digit format
Consists of 14 words, including terminators ; CR
＝
0DH
，
LF
＝
0AH. Parity bit can
not be added under this format.
1
2
3
4
5
6
7
8
9
10 11 12 13 14
P1 D1 D2 D3 D4 D5 D6 D7 U1 U2 S1 S2 CR LF
6-digit data format is the same as 6-digit data format except additional D8.
8.3.4
Polarity
(P1 = 1 word)
P1
Code
Contents
＋
2BH
Data is 0 or positive
－
2DH
Data is negative
△
20H
Data is 0 or positive
(
△：
Space)