Manual

Model FP-624D
FP-624D Instruction Manual Rev. 1.2 Page 31 of 42
03 40013 Special #3 R
Function
Dependant on Value
of 40006 (See Special Register
Table)
03/
40014
Special #4
R/W
Function Dependant on Value
06
of 40006 (See Special Register
Table)
03
40015
Calibration Status
R
0x0000
Idle
0x0001 Zero Calibration Started
0x0002
Span Calibration Started
0x0003
Span Set
0x0004
Span Calibration Unsuccessful
06
40015
Calibration Enable
W
0x0001
Set Zero
0x0002 Set Span
0x0008 Signal simulation mode
0x0009
Set FP Bridge Voltage
0x000A Set TP Heater Power
0x000B Set IR Gain
03 40016 Read Text 1, first char in L R Two Char of Gas/Units String
6
03
40017
Read Text 2
R
Two Char of Gas/Units String
6
03
40018
Read Text 3
R
Two Char of Gas/Units String
6
03
40019
Read Text 4
R
Two Char of Gas/Units String
6
03
40020
Read Text 5, last char in H
R
Two Char of Gas/Units String
6
03
40021
Text null terminator in L
R
Two Char of Gas/Units String
6
03 40022 Special #5 R/W
Function Dependant on Value
of 40006 (See Special Register
Table)
03
40023
Processor Firmware Version
R
0x0102
Version 01.02
1
Units are determined by “units” field in the “notation” string
2
Span Gas must be between 5% and 95% of the detectable range and is usually about 50% of it.
3
Fault status bits self-reset when fault clears
4
Text in ASCII, in order L byte, H byte, L byte… See field descriptions of notation string.
Table 4 Notation Text String Description
Character #
1
2
3
4
5
6
7
8
9
10
11
Description
Units
0x20
Gas Type
0x0
0
Units – This field is typically ‘_ % _’ (where ‘_ ‘ is a space, 0x20).
0x20 – The units field is terminated with an ASCII space (0x20)
Gas Type – This field contains the gas type of the cell (typically “LEL _ _ _”)
0x00 – The notation string is terminated with an ASCII null character