Oldham iTrans 2, Installation And Operation Manual

Page: 81 / 106

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