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QJ71C24 R2與E540變頻器進(jìn)行232通信，QJ發(fā)送后變頻器無(wú)反應(yīng)，在電腦上用串口調(diào)試工具發(fā)送同樣的數(shù)據(jù)，變頻器動(dòng)作正常。將QJ的端口連接至電腦端口后用串口調(diào)試工具對(duì)其發(fā)送內(nèi)容進(jìn)行檢測(cè)后發(fā)現(xiàn)并無(wú)錯(cuò)誤，只是獲得的數(shù)據(jù)并不是一起接收到得。先將串口調(diào)試工具獲得的內(nèi)容粘貼如下：
# Time Function Data ( Hex )
16 [00010541] IRP_MJ_READ Length: 0001, Data: 05
17 [00010541] IRP_MJ_READ Length: 0001, Data: 30
18 [00010541] IRP_MJ_READ Length: 0001, Data: 30
19 [00010541] IRP_MJ_READ Length: 0001, Data: 46
20 [00010541] IRP_MJ_READ Length: 0001, Data: 41
21 [00010541] IRP_MJ_READ Length: 0001, Data: 31
22 [00010541] IRP_MJ_READ Length: 0001, Data: 30
23 [00010541] IRP_MJ_READ Length: 0001, Data: 30
24 [00010541] IRP_MJ_READ Length: 0001, Data: 37
25 [00010541] IRP_MJ_READ Length: 0001, Data: 38
26 [00010542] IRP_MJ_READ Length: 0001, Data: 0D
27 [00010543] IRP_MJ_READ Length: 0001, Data: 0A
注：以上是串口調(diào)試工具獲得QJ發(fā)送的數(shù)據(jù)記錄，這個(gè)是變頻停止指令（用串口調(diào)試工具讓變頻器先運(yùn)轉(zhuǎn)起來(lái)后再用此指令），即使是變頻器運(yùn)行指令，變頻器也無(wú)反應(yīng)。為什么接收來(lái)的數(shù)據(jù)時(shí)這個(gè)樣子呢？？而不是一個(gè)長(zhǎng)度為12的數(shù)據(jù)呢？？
138 [00003133] IRP_MJ_WRITE Length: 0012, Data: 05 30 30 46 41 31 30 32 37 41 0D 0A
139 [00003136] IRP_MJ_READ Length: 0003, Data: 06 30 30
140 [00004015] IRP_MJ_WRITE Length: 0012, Data: 05 30 30 46 41 31 30 30 37 38 0D 0A
141 [00004018] IRP_MJ_READ Length: 0003, Data: 06 30 30
142 [00007181] IRP_MJ_WRITE Length: 0012, Data: 05 30 30 46 41 31 30 32 37 41 0D 0A
143 [00007184] IRP_MJ_READ Length: 0003, Data: 06 30 30
注：以上是有串口調(diào)試工具向E540發(fā)送同樣的數(shù)據(jù) E540動(dòng)作正常
通信設(shè)置 9600、8、 Even 、2。 QJ（SW3:05DE SW4:0006）、 E540(0號(hào)站 9600、8、even、2、CRLF結(jié)束符、通信次數(shù)為9999 )、串口調(diào)試工具均設(shè)置無(wú)誤

根據(jù)您提供的信息，變頻器不運(yùn)轉(zhuǎn)是由于發(fā)送的數(shù)據(jù)沒有連續(xù)造成的，可能還是由于程序方面導(dǎo)致的，建議您最好來(lái)電咨詢，謝謝。

格式化存儲(chǔ)器后，寫入說(shuō)明書的示例程序，發(fā)現(xiàn)數(shù)據(jù)還是不連續(xù)
后將數(shù)據(jù)線接線方式改變后，數(shù)據(jù)依舊不連續(xù)，但是有差別顯現(xiàn)
'46 78短接后接受數(shù)據(jù)如下
6 [00000452] IRP_MJ_READ Length: 0001, Data: 05
7 [00000453] IRP_MJ_READ Length: 0002, Data: 30 31
8 [00000453] IRP_MJ_READ Length: 0002, Data: 46 41
9 [00000453] IRP_MJ_READ Length: 0001, Data: 31
10 [00000453] IRP_MJ_READ Length: 0001, Data: 30
11 [00000454] IRP_MJ_READ Length: 0003, Data: 32 37 42
12 [00002779] IRP_MJ_READ Length: 0002, Data: 05 30
13 [00002779] IRP_MJ_READ Length: 0003, Data: 31 46 41
14 [00002779] IRP_MJ_READ Length: 0003, Data: 31 30 32
15 [00002780] IRP_MJ_READ Length: 0002, Data: 37 42
'將46連接 78短接 后數(shù)據(jù)接受如下
16 [00006247] IRP_MJ_READ Length: 0001, Data: 05
17 [00006247] IRP_MJ_READ Length: 0001, Data: 30
18 [00006247] IRP_MJ_READ Length: 0001, Data: 31
19 [00006247] IRP_MJ_READ Length: 0001, Data: 46
20 [00006247] IRP_MJ_READ Length: 0001, Data: 41
21 [00006248] IRP_MJ_READ Length: 0001, Data: 31
22 [00006248] IRP_MJ_READ Length: 0001, Data: 30
23 [00006248] IRP_MJ_READ Length: 0001, Data: 32
24 [00006248] IRP_MJ_READ Length: 0001, Data: 37
25 [00006248] IRP_MJ_READ Length: 0001, Data: 42
'將78連接 46短接 后數(shù)據(jù)如下
26 [00026148] IRP_MJ_READ Length: 0004, Data: 05 30 31 46
27 [00026148] IRP_MJ_READ Length: 0003, Data: 41 31 30
28 [00026149] IRP_MJ_READ Length: 0003, Data: 32 37 42
29 [00030555] IRP_MJ_READ Length: 0001, Data: 05
30 [00030555] IRP_MJ_READ Length: 0003, Data: 30 31 46
31 [00030555] IRP_MJ_READ Length: 0001, Data: 41
32 [00030555] IRP_MJ_READ Length: 0003, Data: 31 30 32
33 [00030556] IRP_MJ_READ Length: 0001, Data: 37
34 [00030556] IRP_MJ_READ Length: 0001, Data: 42
35 [00030661] IRP_MJ_READ Length: 0001, Data: 05
36 [00030661] IRP_MJ_READ Length: 0004, Data: 30 31 46 41
37 [00030662] IRP_MJ_READ Length: 0004, Data: 31 30 32 37
38 [00030663] IRP_MJ_READ Length: 0001, Data: 42

232接線方式為2、3交叉，4、6交叉，5直連，7、8短接。建議您還是來(lái)電咨詢，核對(duì)相關(guān)程序，謝謝。