Провел несколько опросов в цикле, в результате ответ от устройства приходит редко. Wb-mqtt-serial при этом отключен.
Прикрепил несколько попыток:
root@wirenboard-AF5R2CCQ:~# for i in {0..200}; do echo $i; modbus_client -mtcp -a1 -c2 -r0 -t0x03 -o10 -p503 192.168.250.2; done
0
SUCCESS: read 2 of elements:
Data: 0x3dd2 0x342f
1
SUCCESS: read 2 of elements:
Data: 0x3dd2 0x342f
2
SUCCESS: read 2 of elements:
Data: 0x3dd2 0x342f
3
Connection failed: Connection refused
4
Connection failed: Connection refused
5
Connection failed: Connection refused
6
Connection failed: Operation now in progress
7
Connection failed: Connection refused
8
Connection failed: Connection refused
9
Connection failed: Connection refused
10
Connection failed: Connection refused
11
Connection failed: Connection refused
12
Connection failed: Connection refused
13
Connection failed: Connection refused
14
Connection failed: Connection refused
15
Connection failed: Connection refused
16
Connection failed: Connection refused
17
Connection failed: Connection refused
18
Connection failed: Connection refused
19
Connection failed: Connection refused
20
Connection failed: Connection refused
21
Connection failed: Connection refused
22
Connection failed: Connection refused
23
Connection failed: Connection refused
24
Connection failed: Connection refused
25
Connection failed: Connection refused
26
Connection failed: Connection refused
27
Connection failed: Connection refused
28
Connection failed: Connection refused
29
Connection failed: Connection refused
30
Connection failed: Connection refused
31
Connection failed: Connection refused
32
Connection failed: Connection refused
33
Connection failed: Connection refused
34
Connection failed: Connection refused
35
Connection failed: Connection refused
36
Connection failed: Connection refused
37
Connection failed: Connection refused
38
Connection failed: Connection refused
39
Connection failed: Connection refused
40
Connection failed: Connection refused
41
Connection failed: Connection refused
42
Connection failed: Connection refused
43
Connection failed: Connection refused
44
Connection failed: Operation now in progress
45
Connection failed: Connection refused
46
Connection failed: Connection refused
47
Connection failed: Connection refused
48
Connection failed: Connection refused
49
Connection failed: Connection refused
50
Connection failed: Connection refused
51
Connection failed: Connection refused
52
Connection failed: Connection refused
53
Connection failed: Connection refused
54
Connection failed: Connection refused
55
Connection failed: Connection refused
56
Connection failed: Connection refused
57
Connection failed: Operation now in progress
58
Connection failed: Operation now in progress
59
Connection failed: Connection refused
60
Connection failed: Connection refused
61
Connection failed: Connection refused
62
Connection failed: Connection refused
63
Connection failed: Connection refused
64
Connection failed: Connection refused
65
Connection failed: Connection refused
66
Connection failed: Operation now in progress
67
Connection failed: Connection refused
68
Connection failed: Operation now in progress
69
Connection failed: Connection refused
70
Connection failed: Connection refused
71
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
72
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
73
Connection failed: Operation now in progress
74
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
75
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
76
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
77
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
78
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xa635
79
Connection failed: Operation now in progress
80
Connection failed: Connection refused
81
Connection failed: Connection refused
82
Connection failed: Connection refused
83
Connection failed: Connection refused
84
Connection failed: Connection refused
85
Connection failed: Connection refused
86
Connection failed: Connection refused
87
Connection failed: Connection refused
88
Connection failed: Connection refused
89
Connection failed: Connection refused
90
Connection failed: Connection refused
91
Connection failed: Operation now in progress
92
Connection failed: Connection refused
93
Connection failed: Connection refused
94
Connection failed: Connection refused
95
Connection failed: Connection refused
96
Connection failed: Connection refused
97
Connection failed: Connection refused
98
Connection failed: Connection refused
99
Connection failed: Connection refused
100
SUCCESS: read 2 of elements:
Data: 0x3dd1 0xeac2
101
SUCCESS: read 2 of elements:
Data: 0x3dd1 0x41ad
102
Connection failed: Operation now in progress
103
SUCCESS: read 2 of elements:
Data: 0x3dd1 0x41ad
104
Connection failed: Connection refused
105
Connection failed: Connection refused
106
Connection failed: Connection refused
107
Connection failed: Connection refused
108
Connection failed: Connection refused
109
Connection failed: Connection refused
110
Connection failed: Connection refused
111
Connection failed: Connection refused
112
Connection failed: Connection refused
113
Connection failed: Connection refused
114
Connection failed: Connection refused
115
Connection failed: Connection refused
116
Connection failed: Connection refused
117
Connection failed: Connection refused
118
Connection failed: Connection refused
119
Connection failed: Connection refused
120
Connection failed: Connection refused
121
Connection failed: Connection refused
122
Connection failed: Connection refused
123
Connection failed: Connection refused
124
Connection failed: Connection refused
125
Connection failed: Connection refused
126
Connection failed: Connection refused
127
Connection failed: Connection refused
128
Connection failed: Connection refused
129
Connection failed: Operation now in progress
130
Connection failed: Connection refused
131
Connection failed: Connection refused
132
Connection failed: Connection refused
133
Connection failed: Connection refused
134
Connection failed: Connection refused
135
Connection failed: Connection refused
136
Connection failed: Connection refused
137
Connection failed: Connection refused
138
Connection failed: Connection refused
139
Connection failed: Connection refused
140
Connection failed: Connection refused
141
Connection failed: Connection refused
142
Connection failed: Connection refused
143
Connection failed: Connection refused
144
Connection failed: Connection refused
145
Connection failed: Connection refused
146
Connection failed: Connection refused
147
Connection failed: Operation now in progress
148
Connection failed: Connection refused
149
Connection failed: Connection refused
150
Connection failed: Connection refused
151
Connection failed: Connection refused
152
Connection failed: Operation now in progress
153
Connection failed: Connection refused
154
Connection failed: Connection refused
155
Connection failed: Connection refused
156
Connection failed: Connection refused
157
Connection failed: Connection refused
158
Connection failed: Connection refused
159
Connection failed: Connection refused
160
Connection failed: Connection refused
161
Connection failed: Connection refused
162
Connection failed: Connection refused
163
Connection failed: Connection refused
164
Connection failed: Connection refused
165
Connection failed: Operation now in progress
166
Connection failed: Connection refused
167
Connection failed: Connection refused
168
Connection failed: Connection refused
169
Connection failed: Connection refused
170
Connection failed: Connection refused
171
Connection failed: Connection refused
172
Connection failed: Connection refused
173
Connection failed: Connection refused
174
Connection failed: Connection refused
175
Connection failed: Connection refused
176
Connection failed: Connection refused
177
Connection failed: Connection refused
178
Connection failed: Connection refused
179
Connection failed: Connection refused
180
Connection failed: Operation now in progress
181
Connection failed: Operation now in progress
182
Connection failed: Operation now in progress
183
Connection failed: Connection refused
184
Connection failed: Operation now in progress
185
Connection failed: Connection refused
186
Connection failed: Connection refused
187
Connection failed: Connection refused
188
Connection failed: Connection refused
189
Connection failed: Connection refused
190
Connection failed: Connection refused
191
Connection failed: Connection refused
192
Connection failed: Connection refused
193
Connection failed: Connection refused
194
Connection failed: Connection refused
195
Connection failed: Connection refused
196
Connection failed: Connection refused
197
Connection failed: Connection refused
198
Connection failed: Connection refused
199
Connection failed: Connection refused
200
Connection failed: Connection refused
root@wirenboard-AF5R2CCQ:~# for i in {0..200}; do echo $i; modbus_client -mtcp -a1 -c2 -r0 -t0x03 -o10 -p503 192.168.250.2; done
0
SUCCESS: read 2 of elements:
Data: 0x3de5 0x3f4b
1
SUCCESS: read 2 of elements:
Data: 0x3de5 0x3f4b
2
SUCCESS: read 2 of elements:
Data: 0x3de5 0x3f4b
3
SUCCESS: read 2 of elements:
Data: 0x3de5 0x3f4b
4
Connection failed: Connection refused
5
Connection failed: Connection refused
6
Connection failed: Connection refused
7
Connection failed: Connection refused
8
Connection failed: Connection refused
9
Connection failed: Connection refused
10
Connection failed: Connection refused
11
Connection failed: Connection refused
12
Connection failed: Connection refused
13
Connection failed: Operation now in progress
14
Connection failed: Connection refused
15
Connection failed: Connection refused
16
Connection failed: Connection refused
17
Connection failed: Connection refused
18
Connection failed: Connection refused
19
Connection failed: Connection refused
20
Connection failed: Connection refused
21
Connection failed: Connection refused
22
Connection failed: Connection refused
23
Connection failed: Connection refused
24
Connection failed: Connection refused
25
Connection failed: Connection refused
26
Connection failed: Connection refused
27
Connection failed: Connection refused
28
Connection failed: Connection refused
29
Connection failed: Connection refused
30
Connection failed: Connection refused
31
Connection failed: Connection refused
32
Connection failed: Connection refused
33
Connection failed: Connection refused
34
Connection failed: Connection refused
35
Connection failed: Connection refused
36
Connection failed: Connection refused
37
Connection failed: Connection refused
38
Connection failed: Connection refused
39
Connection failed: Connection refused
40
Connection failed: Connection refused
41
Connection failed: Connection refused
42
Connection failed: Connection refused
43
Connection failed: Connection refused
44
Connection failed: Connection refused
45
Connection failed: Connection refused
46
Connection failed: Connection refused
47
Connection failed: Connection refused
48
Connection failed: Connection refused
49
Connection failed: Connection refused
50
Connection failed: Connection refused
51
Connection failed: Connection refused
52
Connection failed: Connection refused
53
Connection failed: Connection refused
54
Connection failed: Connection refused
55
Connection failed: Connection refused
56
Connection failed: Connection refused
57
Connection failed: Connection refused
58
Connection failed: Connection refused
59
Connection failed: Connection refused
60
Connection failed: Connection refused
61
Connection failed: Operation now in progress
62
Connection failed: Connection refused
63
Connection failed: Connection refused
64
Connection failed: Operation now in progress
65
Connection failed: Connection refused
66
Connection failed: Connection refused
67
Connection failed: Connection refused
68
Connection failed: Connection refused
69
Connection failed: Connection refused
70
Connection failed: Connection refused
71
Connection failed: Connection refused
72
Connection failed: Connection refused
73
Connection failed: Connection refused
74
Connection failed: Connection refused
75
Connection failed: Connection refused
76
Connection failed: Connection refused
77
Connection failed: Connection refused
78
SUCCESS: read 2 of elements:
Data: 0x3de5 0x176e
79
SUCCESS: read 2 of elements:
Data: 0x3de5 0x176e
80
SUCCESS: read 2 of elements:
Data: 0x3de5 0x176e
81
SUCCESS: read 2 of elements:
Data: 0x3de5 0x176e
82
Connection failed: Operation now in progress
83
Connection failed: Connection refused
84
Connection failed: Connection refused
85
Connection failed: Connection refused
86
Connection failed: Connection refused
87
Connection failed: Connection refused
88
Connection failed: Connection refused
89
Connection failed: Connection refused
90
Connection failed: Connection refused
91
Connection failed: Connection refused
92
Connection failed: Connection refused
93
Connection failed: Connection refused
94
Connection failed: Connection refused
95
Connection failed: Connection refused
96
Connection failed: Connection refused
97
Connection failed: Connection refused
98
Connection failed: Connection refused
99
Connection failed: Connection refused
100
Connection failed: Connection refused
101
Connection failed: Connection refused
102
SUCCESS: read 2 of elements:
Data: 0x3de5 0x0d31
103
SUCCESS: read 2 of elements:
Data: 0x3de5 0x0d31
104
SUCCESS: read 2 of elements:
Data: 0x3de5 0x0d31
105
ERROR occured!
106
Connection failed: Connection refused
107
Connection failed: Connection refused
108
Connection failed: Operation now in progress
109
Connection failed: Connection refused
110
Connection failed: Connection refused
111
Connection failed: Connection refused
112
Connection failed: Connection refused
113
Connection failed: Connection refused
114
Connection failed: Connection refused
115
Connection failed: Connection refused
116
Connection failed: Connection refused
117
Connection failed: Connection refused
118
Connection failed: Operation now in progress
119
Connection failed: Connection refused
120
Connection failed: Connection refused
121
Connection failed: Connection refused
122
Connection failed: Connection refused
123
Connection failed: Operation now in progress
124
Connection failed: Connection refused
125
Connection failed: Connection refused
126
SUCCESS: read 2 of elements:
Data: 0x3de6 0x5f1d
127
SUCCESS: read 2 of elements:
Data: 0x3de6 0x5f1d
128
SUCCESS: read 2 of elements:
Data: 0x3de6 0x5f1d
129
SUCCESS: read 2 of elements:
Data: 0x3de6 0x5f1d
130
Connection failed: Connection refused
131
Connection failed: Connection refused
132
Connection failed: Connection refused
133
Connection failed: Connection refused
134
Connection failed: Connection refused
135
Connection failed: Connection refused
136
Connection failed: Connection refused
137
Connection failed: Connection refused
138
Connection failed: Connection refused
139
Connection failed: Connection refused
140
Connection failed: Connection refused
141
Connection failed: Connection refused
142
Connection failed: Connection refused
143
Connection failed: Connection refused
144
Connection failed: Connection refused
145
Connection failed: Connection refused
146
Connection failed: Connection refused
147
Connection failed: Connection refused
148
Connection failed: Connection refused
149
Connection failed: Connection refused
150
Connection failed: Connection refused
151
Connection failed: Connection refused
152
Connection failed: Connection refused
153
Connection failed: Connection refused
154
Connection failed: Connection refused
155
SUCCESS: read 2 of elements:
Data: 0x3de6 0x36db
156
SUCCESS: read 2 of elements:
Data: 0x3de6 0x36db
157
SUCCESS: read 2 of elements:
Data: 0x3de6 0x36db
158
Connection failed: Connection refused
159
Connection failed: Connection refused
160
Connection failed: Connection refused
161
Connection failed: Connection refused
162
Connection failed: Connection refused
163
Connection failed: Connection refused
164
Connection failed: Connection refused
165
Connection failed: Connection refused
166
Connection failed: Connection refused
167
Connection failed: Connection refused
168
Connection failed: Connection refused
169
Connection failed: Connection refused
170
Connection failed: Connection refused
171
Connection failed: Connection refused
172
Connection failed: Connection refused
173
Connection failed: Connection refused
174
Connection failed: Connection refused
175
Connection failed: Connection refused
176
Connection failed: Connection refused
177
Connection failed: Connection refused
178
Connection failed: Connection refused
179
Connection failed: Connection refused
180
Connection failed: Connection refused
181
Connection failed: Connection refused
182
Connection failed: Operation now in progress
183
Connection failed: Operation now in progress
184
SUCCESS: read 2 of elements:
Data: 0x3de5 0x8d70
185
Connection failed: Connection refused
186
Connection failed: Connection refused
187
Connection failed: Connection refused
188
Connection failed: Connection refused
189
Connection failed: Connection refused
190
Connection failed: Connection refused
191
Connection failed: Connection refused
192
Connection failed: Connection refused
193
Connection failed: Connection refused
194
Connection failed: Connection refused
195
Connection failed: Connection refused
196
Connection failed: Connection refused
197
Connection failed: Connection refused
198
Connection failed: Connection refused
199
Connection failed: Connection refused
200
Connection failed: Connection refused
root@wirenboard-AF5R2CCQ:~# for i in {0..200}; do echo $i; modbus_client -mtcp -a1 -c2 -r0 -t0x03 -o10 -p503 192.168.250.2; done
0
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
1
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
2
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
3
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
4
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
5
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
6
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
7
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
8
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
9
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
10
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
11
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
12
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
13
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
14
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
15
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
16
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
17
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
18
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
19
SUCCESS: read 2 of elements:
Data: 0x3dd2 0xb048
20
Connection failed: Connection refused
21
Connection failed: Connection refused
22
Connection failed: Connection refused
23
Connection failed: Connection refused
24
Connection failed: Connection refused
25
Connection failed: Connection refused
26
Connection failed: Operation now in progress
27
Connection failed: Connection refused
28
Connection failed: Connection refused
29
Connection failed: Connection refused
30
Connection failed: Connection refused
31
Connection failed: Connection refused
32
Connection failed: Connection refused
33
Connection failed: Operation now in progress
34
Connection failed: Connection refused
35
Connection failed: Connection refused
36
Connection failed: Connection refused
37
Connection failed: Connection refused
38
Connection failed: Connection refused
39
Connection failed: Connection refused
40
Connection failed: Connection refused
41
Connection failed: Connection refused
42
Connection failed: Connection refused
43
Connection failed: Connection refused
44
Connection failed: Connection refused
45
Connection failed: Connection refused
46
Connection failed: Connection refused
47
Connection failed: Connection refused
48
Connection failed: Connection refused
49
Connection failed: Operation now in progress
50
Connection failed: Connection refused
51
Connection failed: Connection refused
52
Connection failed: Connection refused
53
Connection failed: Connection refused
54
Connection failed: Operation now in progress
55
Connection failed: Connection refused
56
Connection failed: Connection refused
57
Connection failed: Connection refused
58
Connection failed: Connection refused
59
Connection failed: Connection refused
60
Connection failed: Connection refused
61
Connection failed: Connection refused
62
Connection failed: Connection refused
63
Connection failed: Connection refused
64
Connection failed: Connection refused
65
Connection failed: Connection refused
66
Connection failed: Connection refused
67
Connection failed: Connection refused
68
Connection failed: Connection refused
69
Connection failed: Connection refused
70
Connection failed: Connection refused
71
Connection failed: Connection refused
72
Connection failed: Connection refused
73
Connection failed: Connection refused
74
Connection failed: Connection refused
75
Connection failed: Connection refused
76
Connection failed: Connection refused
77
Connection failed: Connection refused
78
Connection failed: Connection refused
79
Connection failed: Connection refused
80
Connection failed: Connection refused
81
Connection failed: Connection refused
82
Connection failed: Connection refused
83
Connection failed: Connection refused
84
Connection failed: Connection refused
85
Connection failed: Connection refused
86
Connection failed: Connection refused
87
Connection failed: Connection refused
88
Connection failed: Connection refused
89
Connection failed: Connection refused
90
Connection failed: Connection refused
91
Connection failed: Connection refused
92
Connection failed: Connection refused
93
Connection failed: Connection refused
94
Connection failed: Connection refused
95
Connection failed: Connection refused
96
Connection failed: Connection refused
97
Connection failed: Connection refused
98
Connection failed: Connection refused
99
Connection failed: Connection refused
100
Connection failed: Connection refused
101
Connection failed: Connection refused
102
Connection failed: Connection refused
103
Connection failed: Connection refused
104
Connection failed: Connection refused
105
Connection failed: Connection refused
106
Connection failed: Connection refused
107
Connection failed: Connection refused
108
Connection failed: Operation now in progress
109
Connection failed: Connection refused
110
Connection failed: Connection refused
111
Connection failed: Connection refused
112
Connection failed: Connection refused
113
Connection failed: Connection refused
114
Connection failed: Connection refused
115
Connection failed: Connection refused
116
Connection failed: Connection refused
117
Connection failed: Connection refused
118
Connection failed: Connection refused
119
Connection failed: Connection refused
120
Connection failed: Connection refused
121
Connection failed: Connection refused
122
Connection failed: Connection refused
123
Connection failed: Connection refused
124
Connection failed: Connection refused
125
Connection failed: Connection refused
126
Connection failed: Connection refused
127
Connection failed: Connection refused
128
Connection failed: Connection refused
129
Connection failed: Connection refused
130
Connection failed: Connection refused
131
Connection failed: Connection refused
132
Connection failed: Connection refused
133
Connection failed: Connection refused
134
Connection failed: Connection refused
135
Connection failed: Connection refused
136
Connection failed: Connection refused
137
Connection failed: Connection refused
138
Connection failed: Connection refused
139
Connection failed: Connection refused
140
Connection failed: Connection refused
141
Connection failed: Connection refused
142
Connection failed: Connection refused
143
Connection failed: Operation now in progress
144
Connection failed: Connection refused
145
Connection failed: Connection refused
146
Connection failed: Connection refused
147
Connection failed: Connection refused
148
Connection failed: Connection refused
149
Connection failed: Operation now in progress
150
Connection failed: Connection refused
151
Connection failed: Connection refused
152
Connection failed: Connection refused
153
Connection failed: Connection refused
154
Connection failed: Connection refused
155
Connection failed: Connection refused
156
Connection failed: Connection refused
157
Connection failed: Connection refused
158
Connection failed: Connection refused
159
Connection failed: Connection refused
160
Connection failed: Connection refused
161
Connection failed: Connection refused
162
Connection failed: Connection refused
163
Connection failed: Connection refused
164
Connection failed: Connection refused
165
Connection failed: Connection refused
166
Connection failed: Connection refused
167
Connection failed: Connection refused
168
Connection failed: Connection refused
169
Connection failed: Operation now in progress
170
Connection failed: Connection refused
171
Connection failed: Connection refused
172
Connection failed: Operation now in progress
173
Connection failed: Connection refused
174
Connection failed: Connection refused
175
Connection failed: Connection refused
176
Connection failed: Connection refused
177
Connection failed: Connection refused
178
Connection failed: Operation now in progress
179
Connection failed: Connection refused
180
Connection failed: Operation now in progress
181
Connection failed: Connection refused
182
Connection failed: Connection refused
183
Connection failed: Connection refused
184
Connection failed: Connection refused
185
Connection failed: Connection refused
186
Connection failed: Operation now in progress
187
Connection failed: Connection refused
188
Connection failed: Operation now in progress
189
Connection failed: Connection refused
190
Connection failed: Connection refused
191
Connection failed: Connection refused
192
Connection failed: Operation now in progress
193
Connection failed: Operation now in progress
194
Connection failed: Connection refused
195
Connection failed: Connection refused
196
Connection failed: Connection refused
197
Connection failed: Connection refused
198
Connection failed: Connection refused
199
Connection failed: Connection refused
200
Connection failed: Connection refused