User Manual

4050 Multi-Input Linear Flow Computer
10
8. RS232 / RS485
Command Structure.
Viewing data from the Multiflow;
All data is sent and received as ASCII HEX pairs, the maths used in PIC Hex format, 2 example routines are
included to convert this data into PC or ASCII strings. The PIC Hex format is always 4 bytes and represents a
32-bit floating-point number system. To read data use the following format.
Description ID View Hub/Slot Reg/Mem Slot Address No.Bytes CR
String a V H R 00A0 04 CR
Hex 61 56 48 52 00A0 04 0D
ASCII Hex 36 31 35 36 34 38 35 32 30 30 41 30 30 34 0D
Notes: Reg/Memory allows the user to view live data within the Processors own working registers or the Flash
memory address space that is used to store constant and curve data. The Hub is the main processor (the card
connected to the serial link), whilst the SLOTs need to be addressed as follows.
Description ID View Hub/Slot Reg/Mem Slot Address No.Bytes CR
String a V S M 04 0600 04 CR
Hex 61 56 49 4D 04 0600 04 0D
ASCII Hex 36 31 35 36 34 39 34 44 30
34
30 36 30 30 30 34 0D
SLOT ID Hex Ascii Hex Position
4 04 30 34 1A
5 05 30 35 1B
6 06 30 36 1C
7 08 30 38 2A
8 09 30 39 2B
9 0A 30 41 2C
10 0C 30 43 3A
11 0D 30 44 3B
12 0E 30 45 3C
13 10 31 30 4A
14 11 31 31 4B
15 12 31 32 4C
16 14 31 34 5A
17 15 31 35 5B
18 16 31 36 5C
General Address.
To obtain the list address for your instrument please send email to [e-mail]
to request a complete list,
also included are the conversion routines of the PicHex to standard PC/Ascii data.
Char output FAST MEDIUM or SLOW
Computer interface information
Port Settings.
The display shows menu ‘SETUP COMMS’, press ALTER to select the possible sub menus
BAUD 19200 Baud rate change using ALTER to 9600, 1200 or 19200
READ ONLY At present the system is set to read only
ID a Use ALTER to scan Ids a to z lower case only
RS485 FAST Delay for bus transceiver FAST MEDIUM or SLOW
COMMS FAST Delay between Char output FAST MEDIUM or SLOW