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6.
Initial Setup
Command list – Read Regulatory Circuit Data
Command:
0110 0001 (61
)
H
Data:
0001 0000 (10
) for temperature in the incubation
H
mode
0001 0001 (11
) for CO
H
0001 0010 (12
) for temperature during ContraCon
H
decontamination
Unit response for Temperature, CO
tamination
Data:
Setpoint x 10
Actual value
(4 bytes, as floating point number)
Internal use
(5 bytes for CO
(Refer to the example below)
Command List – Query Error Codes
Command:
1001 0000 (90
)
H
Data:
None
Response – Query Error Codes
The microprocessor returns a total of 14 bytes (7 inte-
ger values). Each integer value represents one cur-
rent error code in the associated regulatory circuit (0 =
incubation temperature, 1 = CO
tamination temperature, 6 = general).
Example: Temperature data query and response
Query
02
Response:
02
H
2
, and Decon-
2
(2 bytes, as integer)
, otherwise 7 bytes)
2
content, 2 = decon-
2
61
10
8E
03
H
H
H
H
H
6D
01
72
38
91
C7
H
H
H
H
H
integer
float
(37.0)
(24.946)
The entry in index 6 belongs to a higher-level error
which appears on all displays (e.g., error code 99).
The error codes for incubation temperature and de-
contamination temperature appear on the temperature
display, while those for CO
play. A value of 0 indicates that there is currently no
error.
Incorrect Response by the Regulatory Unit:
If a message is incomplete or incorrect, the CPU re-
sponds with an NAK (15
Otherwise, the response will be the command code
(with its own length information) and any required da-
ta.
Particular Data Exchange Features:
The following special features of the exchange of data
between the PC and the regulatory unit's microcon-
troller must be noted:
The microprocessor stores a type size of int or un-
signed int in the sequence: <high byte>, <low byte>.
The reverse is true for the PC. The microcontroller
transmits these values in its own format, that is, the
PC must reverse the byte sequence. There are no
differences for floating decimals (float).
41
F5
6B
F4
43
9E
H
H
H
H
H
H
internal
- 32 -
®
HERAcell
240 CO
Incubator Operating Instructions
2
appear on the CO
2
, 1 byte only, no frame).
H
00
32
4B
03
H
H
H
H
H
Version: 03.2001 / 50065640
dis-
2
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