Thermo Scientific HERACELL VIOS 160i, User Manual

Page: 170 / 200

12
Annex: Data communication
Structure of the command sequences for data communication
12-4
HERA
CELL VIOS
160i
/
250i
Thermo Scientific
The interface transmission speed can be selected within the defined baud rates (9,600, 19,200,
38,400, 57,600 Baud) at the touchscreen of the
HERA
CELL VIOS
160i
/
HERA
CELL VIOS
250i
(see
“ Settings / Setup“ on page 6-17 ).
Structure of the command sequences for data
communication
All characters sent and received in the data exchange between a PC and the incubator
HERA
CELL VIOS
160i
/
HERA
CELL VIOS
250i
are ASCII characters that can be displayed on a conventional
terminal.
This ensures that communication can be set up, controlled, and programmed easily.
Description of protocol
Character coding
ASCII characters, capital letters are not allowed.
Reading parameters:
Query:
?:aaaa:bb::cc<CR>
or: ?:aaaa:bb:XXXX:cc<CR>
Response: !:aaaa:bb:XXXXX:cc<CR>
where: aaaa = parameter adress
bb =amount of payload in this telegram (00 – ff )
cc = checksum: Inverted XOR of all bytes without
checksum and <CR>
XXXX = bb-bytes user data
Description of the response elements:
aaaa
parameter address
bb amount of payload in this telegram (00 – ff)
cc Checksum: Inverted XOR of all bytes without
checksum and <CR>
Example of a software version query (50111927):
Query:
?:0001:00::cc<CR>
Response: !:0001:08:50111927:cc<CR>
Writing parameters:
Command:
!:aaaa:bb:XXXXX:cc<CR>
Response: !:aaaa:bb::cc<CR>
where: aaaa = parameter adress
bb =amount of payload in this telegram (00 – ff )
cc = checksum: Inverted XOR of all bytes without
checksum and <CR>
XXXX = bb-bytes user data
Response with an error message:
Response:
!:aaaa:bb:XX:cc<CR>