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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(luò)通信控制器,用于控制MCU和網(wǎng)絡(luò)服務(wù)器之間的信息交換) |
| 中文描述： | 通信控制器的網(wǎng)絡(luò)連接任何設(shè)計單片機(jī)應(yīng)用系統(tǒng)到一個網(wǎng)關(guān)（單片網(wǎng)絡(luò)通信控制器，用于控制微控制器和網(wǎng)絡(luò)服務(wù)器之間的信息交換） |
| 文件頁數(shù)： | 32/54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
28
The bit definition of the state information (State_Info) is shown in table 21.
Table 21
Bit
Token
Description
D7
Event
Event indication bit, which is set when
the
PS2000A reports.
Event=0: the PS2000A has no event to report.
Event=1: PS2000A has some event to report, server should continuously use
W_RDEV command to read.
D6
Busy
Device is busy and cannot respond to the server’s request. The bit is set by the
PS2000A according the state of MCU application system.
D5
Up
Up=0: the network server sends data package to PS2000A.
Up=1: the PS2000A sends data package to the network server.
D4
DPT_Error
Set by the PS2000A when reporting.
DPT_Error=0: the device property table of PS2000A is correct.
DPT_Error=1: the device property table of PS2000A is error or not loaded.
D3
Reserved
Reserved.
D2 ~ D0
Sequence
Data packet sequence number.
The sequence number is ‘1’ or ‘0’ when the network server sends connecting
command (CONT).
After connection, every time server sends a data packet, the sequence number
increases by ‘1’ (MOD 8). The sequence number of returned data packet from
the PS2000A is same as the received one. Re-sent data packet does not change
the sequence number.
10.2 COMMAND
10.2.1 Command Structure and Function
The command byte in the data package, with which the PS2000A communicates with the
Network Server, consists of two parts, the command state and the command, as shown in
table 22.
Table 22
Command State
D6
Command
D2
CONT
DICN
READ
RDAL
RDPR
RDEV
WRIT
WRPR
ENEV
DSEV
DISV
RESET
D7
D5
D4
D3
D1
D0
More
Error
NO_ACK
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