Safran LRF 7047 User Manual

LRF 7047- Integrator Manual
914929_TML_LRF7047_en_Version B
Public: 04.2019
Confidential & Proprietary  Safran Vectronix AG – All rights reserved
Page: 39/72
6.3 Command structure
6.3.1 Definition
A message is defined as a complete command frame to the LRF module or an answer from the LRF
module to the host system.
6.3.2 Message format
The structure of the message frame is depicted by Figure 27. The message is an ASCII string. The ASCII
code used is UTF- 8 as shown in chapter 9.5 UTF-8 ASCII Table.
Figure 27: Message frame format
Example:
Host  LRF Module
Command frame: >LM,Md,3*D5<0D>
LRF Module  Host
Acknowledge frame: >AC*84<0D>
Response frame: >LM,Md,v0006091,R000E301,R000E301*46<0D>
Prompt: <
 SOM (Start of Message):
The character “>” (ASCII 0x3E) acts as Start of Message. The SOM is used for message
frame synchronization
 Product ID:
The product ID for LRF modules is LM (ASCII 0x4C followed by 0x4D).
 Message ID:
The message ID represents a command (Mnemonic). It is composed of an upper case
letter followed by a lower case letter (example: Md).
 Parameters, if required, can be of different types:
o Decimal: The ASCII values of the integer digits range from 0 to 9.
o Hex: Digits can be 0, 1,….9, A, B, C, D, E, F.
o Char: any ASCII character in the range of 0x20 to 0x7E except 0x2A (‘*’), 0x2C (‘,’), 0x3E (‘>’), 0x3C
(‘<’) and 0x21 (‘!’).
o String: A couple of characters without ending with \0. Within the string, only the characters 32 (0x20)
... 126 (0x7E) except 0x2A (‘*’), 0x2C (‘,’), 0x3C (‘<’), 0x21 (‘!’) and 0x3E (‘>’) are allowed.
>xx,<msg id>,<param 0>,....,<param N>*<chk sum><CR>
Checksum Range
EOM
Checksum
Message ID
SOM
Product ID
Parameter 0
Parameter N

Safran LRF 7047 Specifications

General

Brand	Safran
Model	LRF 7047
Category	Measuring Instruments
Language	English