Configuring Dip Switches For The Em 231 Thermocouple Module; Selecting The Thermocouple Type; Selecting Sensor Burnout Direction - Siemens SIMATIC S7-200 System Manual

Configuring the EM 231 Thermocouple Module
The configuration DIP switches are located on the bottom of the module, as shown
in Figure A-35. For the DIP switch settings to take effect, you need to power cycle
the PLC and/or the user 24V power supply.
DIP switch 4 is reserved for future use. Set DIP switch 4 to the 0 (down) position.
Refer to Table A-22 through Table A-26 for other DIP switch settings.
Figure A-35
Selecting the thermocouple type Select the thermocouple type by setting DIP
switches 1, 2, and 3 as shown in Table A-42.
Table A-22 Selecting the Thermocouple Type
Thermocouple Type
J (Default)
+/-80mV
Selecting the sensor burnout direction Select the sensor burnout direction
(either upscale or downscale) by setting DIP switch 5 as shown in Table A-23.
Table A-23 Selecting Sensor Burnout Direction
Upscale (+3276.7 degrees)
Downscale (-3276.8 degrees)
S7-200 Programmable Controller System Manual
A5E00066097-02
1 2 3 4* 5 6
DIP
Configuration

Configuring DIP Switches for the EM 231 Thermocouple Module

SW1
0
K 0
T 0
E 0
R 1
S 1
N 1
1
Burnout Direction
S7-200 Specifications
1 - On
0 - Off
7 8
ON
* Set dipswitch 4 to the 0 (down) position.
SW2
0
0
1
1
0
0
1
1
SW3
0
1
0
1
0
1
0
1
SW5
0
1
A-69