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參數(shù)資料
| 型號(hào)： | DS1922T |
| 英文描述： | Temperature Logger iButton with 8kB Datalog Memory |
| 文件頁(yè)數(shù)： | 45/48頁(yè) |
| 文件大?。?/td> | 428K |
| 代理商： | DS1922T |
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DS1922L/DS1922T
45 of 48
MISSION EXAMPLE: PREPARE AND START A NEW MISSION
Assumption: The previous mission has been ended by using the Stop Mission command. Passwords are not
enabled. The device is a DS1922L.
Starting a mission requires three steps:
Step 1: Clear the data of the previous mission
Step 2: Write the setup data to register page 1
Step 3: Start the mission
STEP 1
Clear the previous mission.
With only a single device connected to the bus master, the communication of step 1 looks like this:
MASTER MODE
TX
RX
TX
TX
TX
TX
TX
RX
DATA (LSB FIRST)
(Reset)
(Presence)
CCh
96h
<8 FFh bytes>
FFh
(Reset)
(Presence)
COMMENTS
Reset pulse
Presence pulse
Issue “Skip ROM” command
Issue “Clear Memory” command
Send dummy password
Send dummy byte
Reset pulse
Presence pulse
STEP 2
During the setup, the device needs to learn the following information:
Time and Date
Sample Rate
Alarm Thresholds
Alarm Controls (Response to Conditional Search)
General Mission Parameters (e. g., channels to log and logging format, rollover, start mode)
Mission Start Delay
The following data will setup the DS1922L for a mission that logs temperature using 8-bit format. Such a mission
could last up to 56 days until the 8192-byte datalog memory is full.
ADDRESS
0200h
0201h
0202h
0203h
0204h
0205h
0206h
0207h
0208h
0209h
020Ah
020Bh
DATA
00h
30h
15h
01h
04h
02h
0Ah
00h
52h
66h
00h
FFh
EXAMPLE VALUES
FUNCTION
15:30:00 hours
Time
1
st
of April in 2002
Date
Every 10 minutes (EHSS = 0)
Sample rate
0°C low
10°C high
(Don’t care)
Temperature Alarm
Threshold
(Not applicable with DS1922L/T)
(Not applicable with DS1922L/T)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1922L-F5 | Temperature Logger iButton With 8kB Datalog Memory |
| DS1992 | 1kb/4kb Memory iButton |
| DS1993 | 1kb/4kb Memory iButton |
| DS1992L-F5 | 1kbit/4kbit Memory iButtonTM DS1994 4-kbit Plus Time Memory iButtonTM |
| DS21349DK | T1/J1 Line Interface Unit Design Kit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1922T-A1F | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1922T-A1F+ | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1922T-F5 | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1922T-F5# | 功能描述:iButton Temp Logger Ibutton w/8Kb Datalog Mem RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1922T-F50 | 制造商:Maxim Integrated Products 功能描述:THERMOCHRON,IBTN,F5,HI-TEMP,8K - Rail/Tube |
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