XZR400 Series User’s Manual
Michell Instruments
71
APPENDIX B
B.3
RS485 Register Map
Name
Address
[Hex]
Address
[Dec]
Modbus
Command
Type
[R/W]
Data Type
Notes
Standard
Access
Expert
Access
DISPLAY PARAMETERS
O
2
Measurement
0x100
256
3
R
32 Bit Real
0-250 000ppm
(IEEE-754)
Yes
Yes
Oven Temperature 0x104
260
3
R
32 Bit Real
(IEEE-754)
Yes
Yes
Ambient
Temperature
0x108
264
3
R
32 Bit Real
(IEEE-754)
Yes
Yes
MSRS Sensor
Voltage
0x10C
268
3
R
32 Bit Real
(IEEE-754)
Yes
Yes
Atmospheric
Pressure
0x110
272
3
R
32 Bit Real
(IEEE-754)
Yes
Yes
Flow
0x114
276
3
R
32 Bit Real
(IEEE-754)
Yes
Yes
ADJUSTMENT PARAMETERS
Adjustment Gas
0x120
288
3/16
R/W
32 Bit Real
(IEEE-754)
Yes
Yes
Control Gas
0x124
292
3/16
R/W
32 Bit Real
(IEEE-754)
Yes
Yes
Adjustment
Duration
0x128
296
3/6
R/W
16 Bit
ADJ.Gas Time
[Mins]
Yes
Yes
Control Duration
0x12A
298
3/6
R/W
16 Bit
Control Gas Time
[Mins]
Yes
Yes
Purge Duration
0x12C
300
3/6
R/W
16 Bit
Duration of
Purge
[Mins]
Yes
Yes
Start Adjustment
TBA
TBA
3
R
16 Bit
Yes
Yes
CONFIGURATION
Oven Set
Temperature
0x160
352
3/16
R/W
32 Bit Real
634 Nom (IEEE-
754)
No
Yes
ANALOG OUTPUT 1
Type: Lin / Log
0x150
336
2/5
R/W
Bit
Bit X 0=Lin
1=Log
No
Yes
Low Limit
0x130
304
3/16
R/W
32 Bit Real
(IEEE-754)
No
Yes
High Limit
0x134
308
3/16
R/W
32 Bit Real
(IEEE-754)
No
Yes
ANALOG OUTPUT 2
Type: Lin / Log
0x150
336
2/5
R/W
Bit
Bit X 0=Lin
1=Log
No
Yes
Low Limit
0x138
312
3/16
R/W
32 Bit Real
(IEEE-754)
No
Yes
High Limit
0x13C
316
3/16
R/W
32 Bit Real
(IEEE-754)
No
Yes
ALARM OUTPUT 1
Type
0x150
336
2/5
R/W
Bit
Bit X 0=Lin
1=Log
No
Yes
Threshold
0x140
320
3/16
R/W
32 Bit Real
(IEEE-754)
No
Yes
ALARM OUTPUT 2
Type
0x150
336
2/5
R/W
Bit
Bit X 0=Low
1=High
No
Yes
Threshold
0x144
324
3/16
R/W
32 Bit Real
(IEEE-754)
No
Yes
STATUS Byte
0x154
340
3
R
Bit
See table below
No
Yes
Firmware Revision
0x158
344
3
R
Bit
207=FW Rev
2.07
Yes
Yes
