Lauda RE 415 G - RS 232;485 Interface Module; Connecting Lead and Interface Test RS 232

09/2021 ECO Gold 113 / 134
Connection of analogue inputs and outputs
A six-pole round connector with screw lock and contact assignment according to DIN EN 60130-9 or IEC 130-9 are
required.
A suitable coupling plug is obtainable under the catalogue no. EQS 057.
View of socket (front) or solder side of plug:
Socket 74S
Contact 1 Output 1
Contact 2 Output 2
Contact 3 0 V reference potential
Contact 4 Input 1
Contact 5 +20 V (max. 0.1 A)
Contact 6 Input 2
Note: Only use screened connecting leads and connect the screen to the plug housing.
19.3 RS 232/485 interface module
RS 232/485 Interface Module (LAUDA catalogue no. LRZ 913) with
nine-pole SUB-D socket. Electrically isolated using optocouplers. With the
LAUDA instruction set, extensively compatible to Ecoline, Proline and
Integral series.
The RS 232 interface can be connected directly to the PC with a 1:1 con-
nected cable (catalogue no. EKS 037, 2 m cable and EKS 057, 5 m cable).
19.3.1 Connecting lead and interface test RS 232
Computer
Thermostat
Signal
9-pole Sub-D socket
25-pole Sub-D socket
9-pole 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: On connecting a thermostat to the PC use a 1:1 and not a null-modem cable.
 without hardware handshake: Set the operating mode on the PC "without hardware handshake".
 Use screened leads and connect screen to plug case.
 The wires are electrically isolated from the rest of the electronics.
 Non-assigned pins should not be connected.
The RS 232 interface can be checked in a simple way with a connected PC running Microsoft Windows operating sys-
tem. With Windows
®
95/98/NT/XP using the program "HyperTerminal".