JULABO MA-26 Heating Circulators - Manual (Page 46)

Remote control
46
12. Remote control
12.1. Setup for remote control
9 6
5 1
RS232C
 Check the interface parameters for both interfaces (on circulator
and PC) and make sure they match.
(Serial interface refer to page 36.)
 In the menu >CFG< (Configuration) set the menu item >rt<
(Remote) to >ON< . (refer to page 33).
 Connect both units with an interface cable.
Like all parameters which can be entered through the keypad,
interface parameters are stored in memory even after the circulator is
turned off.
12.2. Communication with a PC or a superordinated data system
If the circulator is put into remote control mode via the configuration
level, the MULTI-DISPLAY (LED) 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.
In remote control mode, the start command and all values to be set
must be resent by the PC via the interface in case of a power
interruption.
AUTOSTART is not possible.
A transfer sequence consists of:

command

space ( ; Hex: 20)

parameter (decimal separation with a period)

end of file (
; Hex: 0D)
The commands are divided into in and out commands.
in commands:
retrieve parameters
out commands: set parameters
The out commands are valid only in remote control mode.
Command to set the working temperature > t 1< to 55.5 °C
out_sp_00
 55.5
Command to retrieve the working temperature > t 1<
in_sp_00

Response from the circulator: 55.5
