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Varian 969-9444 Manual De Instrucciones página 62

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When the configuration parameters have to be changed,
send a Request string with "H" characters of the following
type:
"H" + .... DATA .... + CRC
The CRC is calculated on the string consisting of
H + DATA.
The following parameters can be changed:
BYTES
1
Speed adjust value (in KRPM)
2
Speed threshold
3-6
Run up time in seconds
(long coded in 4 bytes)
7
Deat time
(0 = NO 1 = YES)
8
Soft Start mode
(0 = NO I=YES)
9
Water cooling
(0 = NO I=YES)
10
CRC
When the Request is "I" (Status readings), the Answer
will contain a string of 2 characters with the following
parameters:
BYTES
0000 = STOP
0001 = WAITING INTERLOCK
LSB X
0010 = STARTING
X
0011 = NORMAL OPERATION
X
0100 = HIGH LOAD
 
X
0101 =
0110 = FAILURE
0111 = APPROACHING LOW SPEED
1
X
R2 status (0 = OFF 1 = ON)
X
R1 status (0 = OFF 1 = ON)
X
...
MSB X
...
2
CRC
When the Request is "J" (Numerical readings), the
Answer will contain a string of 5 characters with the
following parameters:
BYTES
1
Current (0-255 scaled)
2
Voltage (0-255 scaled)
3
Rotational speed KRPM
4
Pump temperature °C
(0-70 temperature reading, 255 = fail)
5
CRC
MEANING
MEANING
 
MEANING
When the Request is "K" (Counters readings), the
Answer will contain a string of 11 characters with the
following parameters:
BYTES
1-4
Cycle time
5-8
Pump life
9-10
Cycle number
11
CRC
When the Request is
will contain a string of 12 characters with the following
parameters:
BYTES
1-3
Software version
4-7
CRC 16 EPROM
8-11
CRC 16 parameters
12
CRC
On request a sample program in QBasic language is
available by Varian.
When the configuration parameters have to be changed,
send a Request string with the letter "S" and a series of
characters as shown below:
"S" + .... DATA .... + CRC
The CRC is calculated on the string consisting of
S + DATA.
This field is structured as follows:
BYTES
0 ÷ 4
1
2
CRC
The values assumed by byte "1" have the following
meaning:
0 = 600 baud
1 = 1200 baud
2 = 2400 baud
3 = 4800 baud
4 = 9600 baud
58
TECHNICAL INFORMATION
MEANING


L
(software version), the Answer
MEANING
MEANING
87-900-873-01 (C)

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Turbo-v 550969-9544