HT30-M1
59
11.2. Communication with a PC or a superordinated data system
Suitable terminal programs for communicating with a PC are:
MS-Windows
- TERMINAL.EXE (included with MS-Windows).
Easy Temp
control software – allows programming, viewing, and recording of temperature and time
dependent processes when using a single JULABO instrument.
Download free of charge from www.julabo.us or Julabo Order No. 8 901 102.
If the circulator is put into remote control mode via the configuration level, the
display will read "r OFF" = REMOTE STOP.
The circulator is now operated via the computer.
In general, the computer (master) sends commands to the circulator (slave). The
circulator sends data (including error messages) only when the computer sends a
query.
A transfer sequence consists of:
address (RS485 interface only)
command
space (
Hex: 20)
parameter (the character separating decimals in a group is the period)
end of file ( ; Hex: 0D)
The commands are divided into
in
or
out
commands.
in
commands: asking for parameters to be displayed
out
commands:
setting parameters
The
out
commands are valid only in remote control mode.
When the RS485 interface is used, the three-digit instrument address stands in
front of each command.
(example: address Ad32 = A
0 3 2
)
Examples:
Command to set the working temperature T to 55.5 °C
out_sp_00
55.5
A032_out_sp_00
55.5
Command to ask for the working temperature T:
in_sp_00
A032_in_sp_00
Response from the circulator:
55.5
A032_55.5