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参数资料
| 型号： | SCUBD-200/A |
| 厂商： | Red Lion Controls |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | COUNTER LCD COMPONENT 6 DIGIT |
| 标准包装： | 1 |
| 系列： | SUB-CUB |
| 计数速率： | 500kHz |
| 数字/字母数： | 8 |
| 输入类型： | 电压 |
| 电源电压： | 2.5 V ~ 6.0 V |
| 显示器类型： | LCD 无背光 |
| 其它名称： | RLC05 SCUBD SCUBD-200 |
MODES OF OPERATION
BI-DIRECTIONAL COUNTING MODES
For Bi-Directional counting, input “A” serves as the count input, while input
“B” serves as the direction control input. In the Times 1 Mode when “B” is at a
low level, a negative going transition at “A” will cause the counter to count in
the positive direction. When “B” is at a high level, a negative going transition at
“A” will cause the counter to count in the negative direction. Table 1 illustrates
the level settings of the Mode Select Inputs for the various modes of Bi-
Directional counting. The Times 2 Mode works like Times 1 Mode except the
counter increments on both the positive and negative going transitions at “A” .
There are also two Divide-By Modes which prescale the display by 10 or by 100.
This results in the capability of displaying the 7th and 8th digit of the internal
counter. (Along with Times 2, this gives an equivalent ÷ 5 and ÷ 50 display.)
TABLE 1
DECIMAL POINT AND LEADING ZERO BLANKING
SELECTION
The SUB CUB D has three decimal point inputs to the LCD (DP1, DP2, and
DP3) , and two signal outputs from the counter chip. A decimal point is turned
OFF when the LCD input is connected to the BP signal output; or turned ON
when it is connected to the BP output. Refer to Table 3.
The number of leading zeros present on the SUB CUB D display is
determined by the settings of the LZB inputs. Table 4 illustrates the level
settings required for a display of a single 0, to one with no leading zero
blanking. Note that the decimal point position is set independently of the
selection of leading zeros.
TABLE 3
MODE
MS4
MS3
MS2
MS1
D.P.3
D.P.2
D.P.1
Times 1 0 0 0 0
Times 2 0 1 1 0
(x2, ÷10) 0 0 1 0
Divide by 5 *
(x1, ÷10) 0 1 0 1
No DP
1st DP
2nd DP
3rd DP
BP
BP
BP
BP
BP
BP
BP
BP
BP
BP
BP
BP
Divide by 10
(x2, ÷100) 0 0 1 1
Divide by 50 *
(x1, ÷100) 0 1 0 0
Divide by 100
* These factors include both a resolution multiplier and a decade
prescaler.
1 = V DD = High Level 0 = V SS = Low Level
MODES
Test Mode*
0
00
000
0000
00000
TABLE 4
LZB3
0
0
0
0
1
1
LZB2
0
0
1
1
0
0
LZB1
0
1
0
1
0
1
QUADRATURE COUNTING MODES
For Quadrature Times 1 counting, input “A” serves as the count input while
input “B” serves as the quadrature input. (Input “B” is a pulse train shifted 90°
away from “A”.) The counter will count in a positive going direction when “A”
is a negative going signal and “B” is low. The counter will count in a negative
going direction when “A” is a positive going signal and “B” is low. All
transitions on “A” are ignored when “B” is high. These logic rules provide the
basis for anti-jitter operation which will prevent false counts from occurring,
due to back-lash, vibration, chatter, etc.
Table 2 illustrates the level settings of the Mode Select Inputs for the various
modes of Quadrature counting. The Times 2 Quadrature Mode works the same
as Times 1 when “B” is low. But when “B” is high, counts are no longer
ignored at “A” . Instead, the logic rules for “A” are complemented, allowing
both edges of “A” to be counted. This gives an effective doubling of display
count but more importantly, doubles the resolution of the input. The Times 4
Mode extends this even further. Both “A” and “B” serve as count or quadrature
input. In one instance, “A” will be the count input and “B” will be the
quadrature input. In another instance, “B” will be the count input and “A” will
be the quadrature input. This will result in counts and resolution four (4) times
greater than in the Times 1 Mode. For counting rates on these modes, refer to
the specification sheet (X2, X4, ÷ 10, ÷ 100 give an equivalent divide-by 2.5, 5,
25, and 50).
TABLE 2
000000 1 1 0
* Test Mode is intended for factory use only.
MODE
MS4
MS3
MS2
MS1
Times 1 0 1 1 1
Times 2 1 0 0 0
Times 4 1 0 0 1
(x4, ÷10) 1 1 0 1
Divide by 2.5*
(x2, ÷10) 1 0 1 0
Divide by 5*
(x1, ÷10) 1 1 1 0
Divide by 10
(x4, ÷100) 1 1 0 0
Divide by 25*
(x2, ÷100) 1 0 1 1
Divide by 50*
(x1, ÷100) 1 1 1 1
Divide by 100
* These factors include both a resolution multiplier and a decade
prescaler.
1 = V DD = High Level
0 = V SS = Low Level
3
相关PDF资料 |
PDF描述 |
|---|---|
| SCUBT-200/A | TIME/COUNTER 5 1/2 DIGIT |
| SHE-2500 | XFRMR 100-230V/115-230V 2.5KVA |
| SK4700900 | SMT FILTER SAMPLE KIT |
| SLT-1000 | XFRMR 277V/115-125V 1000VA |
| SP-128 | INDUCTOR AUDIO 0.1 HENRY |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SCUBT-200/A | 功能描述:TIME/COUNTER 5 1/2 DIGIT RoHS:是 类别:工业控制，仪表 >> 计数器 系列:SUB-CUB 其它有关文件:Declaration of Conformity 标准包装:1 系列:99766 计数速率:25Hz 数字/字母数:5 输入类型:机电式脉冲 输出类型:- 电源电压:24V 显示器类型:十进制拨轮 |
| SCUDPHBRBEIGE | 制造商:FibreFab 功能描述: |
| SCUDZR02 | 制造商:FibreFab 功能描述: |
| SCUPC-900-COL1-4 | 制造商:3M Electronic Products Division 功能描述:SCUPC-900-COL1-4 SCUPC 900UM P 80611320591 |
| SCUPC-900-COL9-12 | 制造商:3M Electronic Products Division 功能描述:SCUPC-900-COL9-12 SCUPC 900UM 80611320617 |
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