Oldham iTrans 2

81
User Commands
supports all the standard universal HART commands. This section
only provides the details of the device-specific commands.
Read Commands
All read commands are dispatched without any request data and the
response data is then translated to get the requested process variables. In
case of a single sensor the parameters of disconnected sensor are
uninitialized and a warning is indicated in the response code of the
command. The translation/parsing details along with response length of the
commands are given in the Table A - 3.
Command 128 – Read Firmware Revision – Response Length: 8 Bytes
Byte Number
Parsing
Parameter
0-1
Unsigned-16
iTrans HART Board Firmware Version
2-3
Unsigned-16
iTrans Main Unit Firmware Version
4-5
Unsigned-16
Sensor 1 Firmware Version
6-7
Unsigned-16
Sensor 2 Firmware Version
Command 129 – Read Live Channels Gas Data – Response Length: 24 Bytes
Byte Number
Parsing
Parameter
0-3
Float IEEE 754
Gas Reading Channel 1
4-7
Float IEEE 754
Temperature Reading Channel 1
8-9
Unsigned-16
Channel 1 Mode
10-11
Unsigned-16
Channel 1 Status
12-15
Float IEEE 754
Gas Reading Channel 2
16-19
Float IEEE 754
Temperature Reading Channel 2
20-21
Unsigned-16
Channel 2 Mode
22-23
Unsigned-16
Channel 2 Status
Command 130 – Read Real Time Clock – Response Length: 18 Bytes
Byte Number
Parsing
Parameter
0
Unsigned-8
RTC Minute Channel 1
1
Unsigned-8
RTC Hour Channel 1
2
Unsigned-8
RTC Day Channel 1