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11.2. Communication with a PC or a superordinated data system
If the recirculating cooler is put into remote control mode the MULTI-DISPLAY
(LED) will read „R -OFF-„ = REMOTE STOP. The recirculating cooler is now
operated via the computer.
In general, the computer (master) sends commands to the recirculating cooler
(slave). The recirculating cooler sends data (including error messages) only
when the computer sends a query.
In remote control mode:
After a power interruption the order to start and all values which have to be
adjusted must be resent from the personal computer via the interface.
AUTOSTART is not possible.
A transfer sequence consists of:
command
out/in command
space
(
; Hex: 20) out/in command
parameter
(the character separating decimals in a group is the
period) out
command
end of file
(
; Hex: 0D) out/in command
The response (data string) after an
in
command is always followed by a
line feed (LF, Hex: 0A).
