Omega IF-006, Руководство пользователя

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7 IF-006 Interface
The IF-006 interface allows the radio or USB interface to directly access the externally attached smart sensor register space.
If no smart sensor is attached attempts to access the smart sensor register space will return a or INVALID REGISTER
(Modbus interface). Refer to the Smart Sensor Interface specification for a complete description of the smart sensor register
space.
7.1 IF-006-1 USB (Serial) Packet Format
Communications to the IF-006 are based on Serial data frames. For serial terminal sessions and Modbus ASCII
interaction the ‘transaction’ ends on the receipt of a CR (0x0d) character. For Modbus RTU transactions the entire
transaction must adhere to the Modbus serial RTU time specifications.
The IF-006 uses the first byte of the transaction (Start of Frame character) to determine the type of transaction.
For the Modbus ASCII protocol the ascii ‘#’ character denotes the start of the frame. For the CLI interface the first
character denotes the operation to be performed as indicated in the table below. Any other byte value appearing
in the start of the frame is interpreted as a Modbus RTU Modbus device address. Note that this requires excluding
several Modbus addresses in the RTU mode, but in most cases, this will have no impact.
Refer to the Smart Sensor Command Line Interpreter documentation for further details on the interactive
command line mode commands.
SoF
Character
Hex Interpretation
# 0x23 CLI Comment line (ignored)
: 0x3a Start of Fame for Modbus ASCII frame
? 0x3f CLI ‘Help’ command – display command / current state summary
C 0x49 CLI ‘Configure’ command – configure smart sensor device
I 0x4c CLI ‘Interface’ command – configure interface device (IF-006)
O 0x4F CLI ‘Options’ command – configuration options
R 0x52 CLI ‘Read’ command – Read any Smart Sensor register
T 0x54 CLI ‘Trigger’ command – trigger and event on smart sensor device
V 0x56 CLI ‘View’ command – view smart sensor data and status information
W 0x57 CLI ‘Write’ command – Write any Smart Sensor register
<any other>
<any
other>
Indicates Register address for a Modbus RTU frame.