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Proline Kryomats
8.3
Serial interface RS 232/485
RS 232/485 Interface Module (order no. LRZ 913) with 9-pole SUB-D socket. Electrically isolated by optocoupler.
With the LAUDA instruction set essentially compatible to the Ecoline and Integral Series. The RS 232 interface can
be connected directly to the PC with a 1:1 through-contact cable (order no. EKS 037).
8.3.1
Connecting cables and interface test RS 232
Computer
Thermostat
Signal
9-pin sub-D-socket
25-pin sub-D-socket
9-pin sub-D-socket
Signal
R x D
2
2
3
3
2
2
T x D
T x D
3
3
2
2
3
3
R x D
DTR
4
20
4
DSR
Signal Ground
5
5
7
7
5
5
Signal Ground
DSR
6
6
6
DTR
RTS
7
4
7
CTS
CTS
8
5
8
RTS
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”.
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!
When a PC is connected up the RS 232 interface can easily be tested using the Microsoft Windows
operating system. On Windows
®
95/ 98/ NT/ XP with the “HyperTerminal” program.
"HyperTerminal" is no longer included in the later Windows operating systems.
It is possible to communicate with the RS 232-interface using the LAUDA control and application 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".
