Read/Write registers (function codes 0x3 and 0x10).
Float Registers
20
21
slave address
22
23
model number*
24
25
serial number*
26
27
Baudrate (0 = 115200, 1 = 57600, 2 = 38400, 3 = 19200, 4 = 9600, any other
number = 115200)
28
29
parity (0 = none, 1 = odd, 2 = even)
30
31
number of stopbits
32
33
incident multiplier*
34
35
incident offset*
36
37
reflected multiplier*
38
39
reflected offset*
40
41
running average
42
43
heater on/off
Integer Registers
54
slave address
55
model number*
56
serial number*
57
baudrate (0 = 115200, 1 = 57600, 2 = 38400, 3 = 19200, 4 = 9600, any other
number = 115200)
58
parity (0 = none, 1 = odd, 2 = even)
59
number of stopbits
60
incident multiplier (shifted two decimal points to the left)*
61
Incident mV offset (shifted two decimal points to the left)*
62
reflected multiplier (shifted two decimal points to the left)*
63
Reflected mV offset (shifted two decimal points to the left)*
64
Running average
65
Heater on/off
*Registers marked with an asterisk (*) cannot be written to unless a specific procedure is followed. Contact
Apogee Instruments to receive the procedure for writing these registers.
Write only registers (function code 0x10).
Integer Registers
190
Writing to this register resets Coefficients to firmware
defaults. (NOT factory calibrated values!) Slave Address =
1, Model = 722, Serial = 1000, Baud = 3, Parity = 2, Stopbits
= 1, running average = 1
