Remote control – JULABO LC 4 Temperature controller User Manual
Page 31
LC4
31
9. Remote
control
9.1. 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).
If the controller is put into remote control mode via the configuration
level, the display will read "r OFF" = REMOTE STOP. The controller is
now operated via the computer.
In general, the computer (master) sends commands to the controller
(slave). The controller sends data (including error messages) only
when the computer asks for it.
A transfer sequence consists of:
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 and out commands.
in
commands:
asking for parameters to be displayed
out
commands: setting
parameters
The out commands are valid only in remote control mode.
Examples:
Command to set the working temperature to 55.5 °C:
out_sp_00
55.5
Command to ask for the working temperature:
in_sp_00
Response from the controller:
55.5