Rs232/Rs485 Interface; Connecting Cables And Interface Test Rs232; Protocol Rs232 - Lauda Integral XT 150 Operating Instructions Manual

7.17 RS232/RS485 interface (only Command remote control or Module)

7.17.1 Connecting cables and interface test RS232

Signal 9-pin sub-D-socket
R x D
T x D
DTR
Signal Ground
DSR
RTS
CTS
¬ with hardware handshake: For connecting a thermostat to the PC use 1:1 cable and not a null-
modem cable!
- without hardware handshake: the computer / PC must be set to the operating mode "without hard
ware handshake".
+
-
-
-
-
When a PC is connected up the RS232 interface can easily be tested using the Microsoft Windows
operating system. On Windows
"HyperTerminal" is no longer part of the operating system in Windows Vista, Windows 7 and Win-
dows 8.
-
With the LAUDA software "Wintherm Plus" (catalogue number LDSM2002) the RS232 inter-
face can be addressed.
-
In the Internet there are terminal programs available as freeware. These programs offer similar
functions as "HyperTerminal" (for example PuTTY). Search for "serial port terminal program".

7.17.2 Protocol RS232

+
-
-
-
-
-
CR = Carriage Return (Hex: 0D)
LF = Line Feed (Hex: 0A)
110
Computer
25-pin sub-D-socket
¬ -
2 2
3 3
4
5 5
6
7
8
Use screened connecting cable.
Connect screen to connector case.
The connections are isolated from the remainder of the electronics.
Any pins not in use must not be connected!!
®
95/ 98/ NT/ XP with the „Hyper Terminal" program.
The interface operates with 1 stop bit, no parity bit and 8 data bits.
Transfer rate either 2400, 4800, 9600 (factory setting) or 19200 baud as select-
ed.
The RS232 interface can be operated with or without hardware handshake,
(RTS/CTS).
The command from the computer must be terminated with CR, CRLF, or LFCR.
The response of the thermostat is always terminated with CRLF.
9-pin sub-D-socket
¬ -
3 3
2 2
20
7 7
6
4
5
Starting up
Thermostat
¬ -
2 2
3 3
4
5 5 Signal Ground
6
7
8
YAWE0028 / 24/06/2016
Integral XT
Signal
T x D
R x D
DSR
DTR
CTS
RTS