Delta OHM HD 9022 Manual Del Usuario página 5

ALARM F7 L
max
F6 R
2
SP
1
SP
2
SP
3
SP
4
F4 R
1
P
1
ALARM F8 L
min
S LO
1
INPUT mA
0 ÷ 1 mA
0 ÷ 10 mA
0 ÷ 16 mA
Input resistance
0 ÷ 20 mA
25 Ω ± 0,1%
1 ÷ 5 mA
2 ÷ 10 mA
4 ÷ 20 mA
Summary of programming steps of HD 9022
Programming start. Selects the programming step, F0.
Selects the programming step, F1.
Selects the programming step, F2.
........
Exit program mode.
Allows modification of the variable.
Modifies the variable on display.
Confirms the modification.
Moves to next programming step.
STEP COMMENT
F0 Press ENTER to exit program mode
F1 Select type of input: Voltage, current, Pt100
F2 Position of the decimal separator
F3 Beginning of scale value of the input (Voltage, Current, °C)
F4 Beginning of scale value of the display
F5 Full scale value of the input (Voltage, Current, °C)
F6 Full scale value of the display
F7 Maximum alarm threshold set point
F8 Minimum alarm threshold set point
SP1 ON Threshold of Set-point HI
SP2 OFF Threshold of Set-point HI
SP3 ON Threshold of Set-point LO
SP4 OFF Threshold of set-point LO
S10 Baud rate
Serial interface RS-232C
The HD 9022 is equipped with standard serial interface RS-232C which is avail-
able on the SUB D male 9-pin connector. The arrangement of the signals on this
connector is as follows:
Pin Signal Description
2 TD Datum transmitted by the HD 9022
3 RD Datum received by the HD 9022
5 GND Reference logic mass
The transmission parameters with which the instrument is supplied are:
- baud rate 9600 baud
- parity None
- n. bits 8
- stop bit 1
The data transmission speed may be changed by altering the set-up parameter
S10 with the keyboard; the possible baud rates are: 9600, 4800, 2400, 1200, 600,
300. The other transmission parameters are fixed.
All the messages reaching and leaving the HD 9022 must be inserted in a "Com-
munication frame" with the following structure:
<Stx><Record><Etx>
P
2
0 mA
4 mA
F3
0 V
Pt100
LINE OF
CALIBRATION
20 mA
1 V
F5
10 V
Pt100
HI S INPUT (V, mA, Pt100)
2
INPUT V
0 ÷ 100 mV
0 ÷ 1
V
0 ÷ 5
V Input inpedance
200K Ω ± 0,1%
0 ÷ 10
V
1 ÷ 5
V
-10V a +10V
LIMITS
U A
- - Pt
0 - 0.0 - 0.00 - 0.000
0...10,00V, 0...20,00 mA
-200,0...+800,0°C
-9999...19999
0...10,00V, 0...20,00 mA
-200,0...+800,0°C
-9999...19999
-9999...19999
-9999...19999
-9999...19999
-9999...19999
-9999...19999
-9999...19999
300, 600, 1200, 2400,
4800, 9600
Where:
<Stx> Start of text (ASCII 02)
<Record> constitutes the message
<Etx> End of text (ASCII 03)
Host commands
The structure of the command records is as follows:
<Command character><Sub-command><Values>
Where:
<Command character> is characterized by an alphabetic character indicat-
ing the set of commands.
<Sub-command> is characterized by a character indicating the type of
command.
<Values> is characterized by ASCII characters that depend on
the type of command.
The replies provided by the HD 9022 are essentially of two types:
"Information" and "Data"
The former allow information on the status and programming of the HD 9022 to be
obtained, as well as the diagnosis of the message received; the latter contain data
on the two channels at the moment the request is made.
It is also possible to make use of the serial line for the complete programming of
the HD 9022, with the exception of the data transmission speed which may be set
only with the keyboard.
The diagnostic replies of the HD 9022 are composed of the following control char-
acters, sent individually (not inserted in the communication frame):
-ack- Command executed (ASCII 06)
-nak- Incorrect command (ASCII 15H)
COMMAND A
Sub-command
A Type of terminal
C Company
D Firmware Version
E Firmware Date
F Serial Number (rd)
(wr)
COMMAND M
Sub-command
1
2
RESET COMMAND
(wr)
CHANNEL 1
C1F01 x Input in
C1F02 x Point
C1F03 xxxx Start of scale
C1F04 xxxx V/I Start of scale
C1F05 xxxx End of scale
C1F06 xxxx V/I End of scale
C1F07 xxxx Energ. Relay HI
C1F08 xxxx De-energ. Relay HI
C1F09 xxxx Energ. Relay LO
C1F10 xxxx De-energ. Relay LO -9999...19999
C1F11 xxxx Min Relay Alarm
C1F12 xxxx Max Relay Alarm
As regards the command just described, a few remarks must be made:
- There is no command character.
- For the other controls of the type C1F01 etc., the present programming status is
supplied for the specific command if only the sequence of the sub-command
characters is sent.
Ex: StxC1F01Etx Request from Host
StxC1F01:1Etx Reply
If the sequence of the sub-command characters is followed by a space and then
the desired programming value, the programming of the parameter is produced.
Ex: StxC1F01 1Etx Command from Host
ack / nak Reply
StxC1F03 1000Etx Command from Host
ack / nak Reply
StxC1F03-2000Etx Command from Host
ack / nak Reply
StxC1F0512000Etx Command from Host
ack / nak Reply
Note: for programming of the point F03...F12, the value field has fixed length of 5
characters. The first character in the value field may be a space, the minus sign,
or the number 1.
5
Values Replies
HD 9022 ack/nak
DELTA OHM ack/nak
Vxx Rxx ack/nak
dd/mm/yy ack/nak
xxxxxx ack/nak
stxAFxxxxxxetx ack/nak
Values Replies
Measure Channel 1 ack/nak
Measure Channel 2 ack/nak
Values Replies
stxRESETetx ack/nak
V/A/Pt
0/1/2/3
-9999...19999
0000...10000 (2000 if I)
-9999...19999
0000...10000 (2000 if I)
-9999...19999
-9999...19999
-9999...19999
-9999...19999
-9999...19999
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak
ack/nak