62
Table 7-1 Modbus Registers
Data Register
Register
Index
Monitor
Access
Serial Number; a 16bit number between 1-65535 exclusive to a specific
UTx-M model.
0
*1 Read
Hardware Rev / Software Rev; a 16bit number made up of four bit
fields:
5 bit hardware version [15:11] (1-32 versions)
3 bit hardware revision [10:8] (A-H revisions)
5 bit software version [7:3] (1-32 versions)
3 bit software revision [2:0] (A-H revisions).
These fields are displayed on the LCD during power up.
1
*1 Read
Transmitter Status / Mode; a 16bit number made up of two 8 bit fields
representing transmitter status and modes.
Instrument Status Bits[15:8]:
•
Transmitter Okay = 0x00
•
Transmtter Error = 0xFF
Instrument Mode Bits [7:0]: (Default 0x8F)
Bit 7 Reserved for Self Test=1
(always being self-tested)
Bit 6 Reserved for Remote Calibration Type=0
(Remote Calibration not supported)
Bit 5 Reserved for Output Enable=0
(Output not available)
Bit 4 Reserved for Output Type=0
(Output not applicable)
Bit 3 Reserved for Baud Rate=1
(Fixed at 9600)
Bit 2 Reserved bit=1
Bit 1 Reserved bit=1
Bit 0 Reserved bit=1
2
*1 Read
Gas Number / Device Address; a 16bit number made up of two 8 bit
fields of Smart Sensor 2 gas number and Transmitter MODBUS
address. Gas number is updated from Smart Sensor 2 upon
registration.
Gas Number [15:8]:
3
*1 Read
