Siemens SIMATIC S7-200 - EM 231 Configuration Switch Table to Select Analog Input Range; EM 235 Configuration Switch Table to Select Analog Input Range and Resolution

S7-200 Specifications
A-43
S7-200 Programmable Controller System Manual
A5E00066097-02
Configuration for EM 231
Table A-12 shows how to configure the EM 231 module using the configuration DIP
switches. Switches 1, 2, and 3 select the analog input range. All inputs are set to
the same analog input range. In this table, ON is closed, and OFF is open.
Table A-12 EM 231 Configuration Switch Table to Select Analog Input Range
Unipolar
F ll Scale Inp t
Resol tion
SW1 SW2 SW3
Full-Scale Input Resolution
OFF ON 0 to 10 V 2.5 mV
ON
ON
OFF
0 to 5 V 1.25 mV
ON OFF
0 to 20 mA 5 µA
Bipolar
F ll Scale Inp t
Resol tion
SW1 SW2 SW3
Full-Scale Input Resolution
OFF
OFF ON ± 5 V 2.5 mV
OFF
ON OFF ± 2.5 V 1.25 mV
Configuration for EM 235
Table A-13 shows how to configure the EM 235 module using the configuration DIP
switches. Switches 1 through 6 select the analog input range and resolution. All
inputs are set to the same analog input range and format. Table A-14 shows how
to select for unipolar/bipolar (switch 6), gain (switches 4 and 5), and attenuation
(switches 1, 2, and 3). In these tables, ON is closed, and OFF is open.
Table A-13 EM 235 Configuration Switch Table to Select Analog Input Range and Resolution
Unipolar
F ll Scale Inp t
Resol tion
SW1 SW2 SW3 SW4 SW5 SW6
Full-Scale Input Resolution
ON OFF OFF ON OFF ON 0 to 50 mV 12.5 V
OFF ON OFF ON OFF ON 0 to 100 mV 25 V
ON OFF OFF OFF ON ON 0 to 500 mV 125 V
OFF ON OFF OFF ON ON 0 to 1 V 250 V
ON OFF OFF OFF OFF ON 0 to 5 V 1.25 mV
ON OFF OFF OFF OFF ON 0 to 20 mA 5 A
OFF ON OFF OFF OFF ON 0 to 10 V 2.5 mV
Bipolar
F ll Scale Inp t
Resol tion
SW1 SW2 SW3 SW4 SW5 SW6
Full-Scale Input Resolution
ON OFF OFF ON OFF OFF +25 mV 12.5 V
OFF ON OFF ON OFF OFF +50 mV 25 V
OFF OFF ON ON OFF OFF +100 mV 50 V
ON OFF OFF OFF ON OFF +250 mV 125 V
OFF ON OFF OFF ON OFF +500 mV 250 V
OFF OFF ON OFF ON OFF +1 V 500 V
ON OFF OFF OFF OFF OFF +2.5 V 1.25 mV
OFF ON OFF OFF OFF OFF +5 V 2.5 mV
OFF OFF ON OFF OFF OFF +10 V 5 mV