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8.3
RS-232/485 Serial interface
RS-232/485 interface module (catalogue no. LRZ 913) with 9-pole SUB-D socket. Electrically isolated
by optocoupler. With the LAUDA instruction set essentially compatible to the ECO, Ecoline, Integral XT
and Integral T Series. The RS-232 interface can be connected directly to the PC with a 1:1 through-
contact cable (catalogue no. EKS 037).
8.3.1 Connecting cables and interface test RS-232
Signal
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 RS-232 interface can easily be tested using the Microsoft Windows
operating system. On Windows
the "Hyper Terminal" program.
"HyperTerminal" is no longer included in the operating system in Windows Vista, Windows 7 and Win-
dows 8.
It is possible to communicate with the RS-232-interface using the LAUDA control and applica-
tion software, Wintherm Plus (catalog number LDSM2002).
Terminal programs are available on the Internet as freeware. These programs offer features
similar to "HyperTerminal" (for example PuTTY). Search query "serial port terminal program".
90
Computer
9-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 galvanically isolated from the rest of the electronics.
Any pins not in use must not be connected!
3.11 with the "Terminal" program, on Windows
®
Interface modules
Proline Edition X heating thermostats
25-pin sub-D-socket
3
3
2
2
20
7
7
6
4
5
Thermostat
9-pin sub-D-socket
2
2
3
3
4
5
5
6
7
8
®
95/ 98/ NT/ XP with
YACE0099
Signal
T x D
R x D
DSR
Signal Ground
DTR
CTS
RTS
/
10/9/2018
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