Hanna-instruments HI 700 Series Manual de usuario descargar pdf (Pagina 17)

3332

Command Parameter Description

CAR null Request calibration data

GET NN Request setup item NN

K 01 null Same as CFM++CAL keys

K 02 null Same as LCD+CAL+SETUP keys

KCD null Same as CAL DATA key

KCF null Same as CFM key

KCL null Same as CAL key

KDS null Same as LCD key

KDW null Same as  key

KRG null Same as  key

KST null Same as SETUP key

KUP null Same as  key

MD R null Request firmware code

ECR null Request EC reading

(in control or idle modeonly)

TDR n ull Request TDS reading

(HI 710 models only, available in

control or idle mode only)

R N G null Request measure Range

(in control or idle mode only)

TMR n u l l Request temperature reading

PWD NNNN Send the 4-digit password

SET NNPC

Set setup item NN to the

value

P=+ if value is greater than 0

if value is less than 0

can be 0 or 1 only

can be 0÷9 or blank

(the command is not available if

the controller is in setup mode)

Note If the controller is not in control or idle mode and the tem-

perature reading is requested through the TMR command,

the controller answers with the last acquired reading when it

was in control or idle mode.

Note After a recognized PWD command is received, the controller

allows a maximum of 1 minute without receiving data, after

which it locks again and a new PWD command is needed to

perform password protected operations.

Following are examples of commands for setup items:

1) “03 SET 22

01200<CR>”

This command sets the setup item 22 (relay 2 setpoint) of

a EC controller, identified by the process ID number 03,

to the +12.00 mS value.

2) “01 SET 33+005

◊◊<CR>”

This command sets the setup item 33 (max. relay ON

time) of a controller, identified by the process ID number

01, to 5 minutes. The

“◊” character means blank.

Once the controller has received a command, it answers

with its 2-digit process ID number followed by:

• ACK (Hex 06)

If the controller recognizes the received command

and performs the requested task;

• STX (Hex 02) , Data , ETX (Hex 03)

If the received command is a request of data;

• NAK (Hex 15)

If the received command is not recognized (e.g. the

syntax is wrong);

• CAN (Hex 18)

If the controller cannot answer the request (e.g. the

password was not sent, the controller is in setup

mode, the setup item is not available in that model,

etc.)

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Hanna-instruments HI 700 Series Manual de usuario Pagina 17

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