Serial Interfaces Rs 232, Rs 485; Rs 232 Interface - Lauda Integral T 1200 Operating Instructions Manual

7.7

Serial interfaces RS 232, RS 485

7.7.1

RS 232 Interface

Connecting cables and interface test:
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
hardware handshake". Pins 7 and 8 on the thermostat connector must be connected together.

When a PC is connected up the RS 232 interface can easily be tested using the Microsoft Windows
operating system. On Windows 3.11 with the "Terminal" program, on Windows
"Hyper Terminal" program.
"HyperTerminal" is no longer part of the operating system in Windows Vista, Windows 7 and
Windows 8.
- With the LAUDA software "Wintherm Plus" (catalogue number LDSM2002) the RS 232
interface 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".
76
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 isolated from the remainder of the electronics.

Any pins not in use must not be connected!
Integral T process thermostats

Correction limitation:
Here it is possible to set a limit for the difference
between external temperature (TE) and the outflow
temperature. This is used e.g. for gentle heating of the
product being heated. It can also be helpful for a better
stabilisation of the external temperature. 00 means
that this function is de-activated. Values between 1 °C
and 200 °C can be set.
25-pin sub-D socket
 
3 3
2 2
20
7 7
6
4
5
Starting up
Thermostat
9-pin sub-D socket
 
2 2
3 3
4
5 5
6
7 7
8 8
®
95/ 98/ NT/ XP with the
YAWE 0026 / 21/01/2019
Signal
T x D
R x D
DSR
Signal Ground
DTR
CTS
RTS