JULABO Magnum 91 Temperature System - Manual (Page 65)

Temperature System Magnum 91
65
11.2. Communication with a PC or a superordinated data system
In general, the computer (master) sends commands to the instrument (slave). The
instrument 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 = A032)
Examples:
Command to set the working temperature to 55.5 °C
out_sp_00  55.5
A032_out_sp_00  55.5
Command to ask for the working temperature T1:
in_sp_00 
A032_in_sp_00 
Response from the instrument:
55.5 
A032_55.5 