6
Others
5
RS-232C Interface
Control of this unit via a computer is possible by connecting the computer to this unit with a RS-232C
cross cable (D-Sub 9 pin).
●
PC refers to the controller such as a personal computer.
D6 D7
D4 D5
D2 D3
D0 D1
Command Format
The command between this unit and the computer consists of “Header”, “Unit ID”, “Command”, “Data” and “End”.
●
Header (1 byte), Unit ID (2 bytes), Command (2 bytes), Data (n bytes), End (1 byte)
■
Header
This binary code indicates the start of communication.
Binary code
Type
Description
1
Operating command
PC→This unit
F
Reference command
PC→This unit
0
Response command
This unit→PC
06
ACK
This unit→PC
(When the command is accepted without error, it returns to
PC)
■
Unit ID
This code specifies the unit. The binary code is fixed at “8901”.
RS-232C Specifications
Pin No.
Signal
Function
Signal Direction
RxD
Receive data
PC→This unit
TxD
Transmit data
This unit→PC
5
GND
Signal ground
-
1,,6 - 9
N/C
-
-
Mode
Non-synchronous
Character Length
8 bit
Parity
None
Start Bit
1
Stop Bit
1
Data rate
1900 bps
Data format
Binary
T
his unit
Start Bit
Stop Bit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
