| Article number | 6ES7131-4CD02-0AB0 | 6ES7131-4EB00-0AB0 | 6ES7131-4FB00-0AB0 | 6ES7131-4RD02-0AB0 | 6ES7131-4BF50-0AA0 | 
|  | ET200S, El-Mod., 4DI, UC 24-48V, 5 PCS | ET200S, El-Mod., 2DI, AC 120V, 5pcs. | ET200S, El-Mod., 2DI, AC 230V, 5pcs. | ET200S, El-Mod., 4DI DC 24V NAMUR | ET 200S, 8 DI Source Input DC24V | 
| Supply voltage |  |  |  |  |  | 
| Rated value (DC) |  |  |  | 24 V | 24 V; From power module | 
| Rated value (AC) |  | 120 V | 230 V |  |  | 
| Reverse polarity protection | Yes; AC or DC automatic |  |  |  | Yes | 
| Input current |  |  |  |  |  | 
| from supply voltage L+, max. | Dependent on encoder |  |  |  | Dependent on encoder | 
| from supply voltage L1, max. |  | Dependent on encoder | Dependent on encoder |  |  | 
| from backplane bus 3.3 V DC, max. | 10 mA | 6 mA | 6 mA |  |  | 
| Encoder supply |  |  |  |  |  | 
| Number of outputs |  |  |  | 1 |  | 
| Type of output voltage | min. L+ (-0.5 V), under load |  |  | min. 8.2 V, loaded |  | 
| Short-circuit protection | Yes; per module |  |  | Yes; Electronic |  | 
| Output current |  |  |  |  |  | 
| ● Rated value | 500 mA |  |  | 45 mA |  | 
| ● permissible range, lower limit | 0 mA |  |  |  |  | 
| ● permissible range, upper limit | 500 mA |  |  |  |  | 
| Power loss |  |  |  |  |  | 
| Power loss, typ. | 0.7 W | 0.5 W | 0.7 W | 1.6 W | 1.2 W | 
| Address area |  |  |  |  |  | 
| Address space per module |  |  |  |  |  | 
| ● Address space per module, max. | 1 byte | 1 byte | 1 byte | 1 byte |  | 
| ● with packing | 4 bit | 2 bit | 2 bit | 4 bit |  | 
| Digital inputs |  |  |  |  |  | 
| Number of digital inputs | 4 | 2 | 2 | 4 | 8 | 
| Number of NAMUR inputs |  |  |  | 4 |  | 
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes | Yes | Yes |  | Yes | 
| Input voltage |  |  |  |  |  | 
| ● Type of input voltage | AC/DC | AC | AC | DC | DC | 
| ● Rated value (DC) |  |  |  |  | 24 V | 
| ● Rated value (AC) |  | 120 V; 47 … 63 Hz | 230 V; 47 … 63 Hz |  |  | 
| ● Rated value (UC) | 24 V; 24 … 48 V UC (47 … 63 Hz) |  |  |  |  | 
| ● for signal “0” | -6 to +6 V DC/ 0 to 5 V AC | 0V AC to 20V AC | 0V AC to 40V AC |  | -5 to +30V | 
| ● for signal “1” | -15 V DC to -57.6 V DC; 15 V DC to 57.6 V DC; 15 V AC to 48 V AC | 79 to 132 V AC | 164V AC to 264V AC |  | -15 to -30 V | 
| Input current |  |  |  |  |  | 
| ● for signal “1”, typ. | 10 mA; 4 to 10 mA | 3 mA; 3 to 9 mA | 5 mA; 5 to 15mA |  | 6 mA; at 24 V | 
| for 10 k switched contact |  |  |  |  |  | 
| — for signal “0” |  |  |  | 0.35 to 1.2 mA |  | 
| — for signal “1” |  |  |  | 2.1 to 7 mA |  | 
| for unswitched contact |  |  |  |  |  | 
| — for signal “0”, max. (permissible quiescent current) |  |  |  | 0.5 mA |  | 
| — for signal “1” |  |  |  | typ. 8 mA |  | 
| for NAMUR encoders |  |  |  |  |  | 
| — for signal “0”, min. |  |  |  | 0.35 mA |  | 
| — for signal “0”, max. |  |  |  | 1.2 mA |  | 
| — for signal “1”, min. |  |  |  | 2.1 mA |  | 
| — for signal “1”, max. |  |  |  | 7 mA |  | 
| Input delay (for rated value of input voltage) |  |  |  |  |  | 
| for standard inputs |  |  |  |  |  | 
| — parameterizable |  |  |  |  | No | 
| — at “0” to “1”, min. |  | 15 ms | 15 ms |  | 2 ms | 
| — at “0” to “1”, max. | 15 ms |  |  | 4.6 µs | 4.5 ms | 
| — at “1” to “0”, min. |  | 25 ms | 45 ms |  | 2 ms | 
| — at “1” to “0”, max. | 15 ms |  |  | 4.6 µs | 4.5 ms | 
| Encoder connection |  |  |  |  |  | 
| ● Fixed current limitation for wire-break monitoring, min. | 18 kΩ; Rated voltage 24 V (15 V to 35 V); rated voltage 48 V (30 V to 60 V): 39 kohms |  |  |  |  | 
| Cable length |  |  |  |  |  | 
| ● shielded, max. | 1 000 m | 1 000 m | 1 000 m | 200 m | 1 000 m | 
| ● unshielded, max. | 600 m | 600 m | 600 m |  | 600 m | 
| Encoder |  |  |  |  |  | 
| Connectable encoders |  |  |  |  |  | 
| ● 2-wire sensor | Yes | No | No |  | Yes | 
| — permissible quiescent current (2-wire sensor), max. | 2 mA; (0.5 to 2 mA), a minimum load current is necessary for wire break diagnostics. | 1 mA | 2 mA |  | 1.5 mA | 
| Interrupts/diagnostics/status information |  |  |  |  |  | 
| Diagnostics function | Yes; Parameterizable | No | No | Yes; Diagnostic alarm | No | 
| Alarms |  |  |  |  |  | 
| ● Diagnostic alarm |  |  |  | Yes; can be set |  | 
| ● Hardware interrupt |  |  |  | No |  | 
| Diagnoses |  |  |  |  |  | 
| ● Diagnostic information readable |  |  |  | Yes |  | 
| ● Wire-break | Yes |  |  | Yes |  | 
| ● Short-circuit |  | No | No |  |  | 
| Diagnostics indication LED |  |  |  |  |  | 
| ● Group error SF (red) | Yes |  |  | Yes | No | 
| ● Status indicator digital input (green) | Yes; per channel | Yes; per channel | Yes; per channel | Yes; per channel | Yes; per channel | 
| Parameter |  |  |  |  |  | 
| Remark |  | 3 byte | 3 byte | 12 byte | 3 byte | 
| Potential separation |  |  |  |  |  | 
| Potential separation digital inputs |  |  |  |  |  | 
| ● between the channels | No | No | No | No | No | 
| ● between the channels and backplane bus | Yes | Yes | Yes | Yes | Yes | 
| ● Between the channels and load voltage L+ |  |  |  | Yes |  | 
| Isolation |  |  |  |  |  | 
| Isolation tested with | 2 500 V DC | 2 500 V DC | 4 000 V DC | 500 V DC | 500 V DC | 
| Dimensions |  |  |  |  |  | 
| Width | 15 mm | 15 mm | 15 mm | 15 mm | 15 mm | 
| Height | 81 mm | 81 mm | 81 mm | 81 mm | 81 mm | 
| Depth | 52 mm | 52 mm | 52 mm | 52 mm | 52 mm | 
| Weights |  |  |  |  |  | 
| Weight, approx. | 35 g | 31 g | 31 g | 35 g | 35 g |