4. Functions
32
COM-1(PM), COM-1D(PM)
Setting the Baud Rate
The baud rate is set by specifying the divide register value (divisor).
Baud Rate: 2 to 115,200bps
Table 4.1 lists the divisor settings for common baud rates when using the COM Setup Disk and
API-PAC(W32).
Table 4.1. Example Settings for Common Baud Rates
Baud Rate
Divisor
Setting
Error
Baud Rate
Divisor
Setting
Error
Baud Rate
Divisor
Setting
Error
2
57600
---
150
768
---
7200
16
---
4
28800
---
300
384
---
9600
12
---
5
23040
---
600
192
---
14400
8
---
8
14400
---
1200
96
---
19200
6
---
15
7680
---
1800
64
---
28800
4
---
50
2304
---
2000
58
0.68
38400
3
---
75
1536
---
2400
48
---
57600
2
---
110
1047
0.026
3600
32
---
115200
1
---
134.5
857
0.058
4800
24
---
---
Use the formula below if you want to set a baud rate other than those listed in Table 4.1. A baud rate can
only be set if the divisor calculated by the formula is an integer. Any digits after the decimal point
indicate that the baud rate cannot be used.
115200 ÷ Desired baud rate
= Divisor (Divide register setting value)
Ex.)
115200 ÷ 9600bps
=
12 (As the result is an integer, this baud rate can be set.)
115200 ÷ 76800bps
=
1.5 (As the result contains a fractional part, this baud rate cannot be set.)
