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參數(shù)資料
| 型號： | PS2000ACQ |
| 英文描述： | A Network Communication Controller Designed to Connect Any MCU Application System To A Gateway(單片網(wǎng)絡通信控制器,用于控制MCU和網(wǎng)絡服務器之間的信息交換) |
| 中文描述： | 通信控制器的網(wǎng)絡連接任何設計單片機應用系統(tǒng)到一個網(wǎng)關（單片網(wǎng)絡通信控制器，用于控制微控制器和網(wǎng)絡服務器之間的信息交換） |
| 文件頁數(shù)： | 43/54頁 |
| 文件大?。?/td> | 594K |
| 代理商： | PS2000ACQ |
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PS2000A Datasheet
Doc. Number:
TECINHD001
Version 1.0
3/1/2002
P&S DataCom Corporation
39
If the PS2000A has a super password, the network server and the DPTGT must send out
the new password together with the old one when modifying a super password. Only
when the old super password matches the original one in the PS2000A will the new super
password be valid. The network server and the DPTGT use the WRIT command to
modify a super password as shown in Table 29.
Table 29
Byte
Package content
Description
ESC (0x1b)
SOH (0x01)
ESC (0x1b)
4
SOH (0x01)
Package header
4
Server ID Code
Server identification code
8
Device ID code
Device identification code
1
State information byte
Refer Table 21
1
WRIT (01h)
Write command
10
$Super_PW+NULL
Name of super password
7
Character string of old super password
Character string of old super password
7
Character string of new super
password
Character string of new super password
ESC (0x1b)
ETB (0x17)
Packet trailer
4
CRC
CRC value, 2 bytes (MSB first)
When the PS2000A sets the super password, the network server and the DPTGT continue
the following operation only after receiving the returned data from the PS2000A. If they
don’t receive any information from the PS2000A within 15 minutes, the current set-up
fails. The PS2000A is powered off and then powered on again.
When setting the new super password, the PS2000A will check if the Device Property
Table storage is empty first. If not, it will take about 10 seconds for the PS2000A to clear
the storage. Then, the PS2000A will return a successful message “setting super password
to the network server or the DPTGT.” If the Device Property Table storage is empty, the
PS2000A will return a successful message “setting the super password to the network
server or the DPTGT.”
When modifying the super password, if the password is modified successfully, the
PS2000A will return a successful message of modifying the super password to the
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