Siemens DCM 1271 (AS-I DATA DECOUPL) - 3RK7271-1AA30-0AA0
SIMATIC S7-1200, DCM 1271 Data decoupling module for AS-i Master CM 1243-2 IN: 24 V / 30 V DC OUT: 1x AS-Interface, 4 A Integrated overload protection integr. ground...
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SIMATIC S7-1200, DCM 1271 Data decoupling module for AS-i Master CM 1243-2 IN: 24 V / 30 V DC OUT: 1x AS-Interface, 4 A Integrated overload protection integr. ground fault detection Signaling contact
| General technical data | ||
| product designation | AS-Interface data decoupling unit | |
| design of the product | Communication module 30 mm for SIMATIC S7-1200 | |
| protection class IP | IP20 | |
| installation altitude at height above sea level maximum | m | 2 000 |
| ambient temperature | ||
| ● during operation | °C | 0 ... 55 |
| ● during storage | °C | -40 ... +70 |
| relative humidity at 25 °C during operation maximum | % | 95 |
| reference code according to DIN 40719 extended according to IEC 204-2 according to IEC 750 | A | |
| reference code according to EN 61346-2 | A | |
| supplied active power | W | 120 |
| product function | ||
| ● auto-RESET | Yes | |
| ● external reset | No | |
| ● manual RESET | No | |
| ● ground fault detection | Yes | |
| ● test function of signaling contacts | No | |
| ● suitable for grounded AS-i networks | Yes | |
| ● adapted for non-grounded AS-i networks | Yes | |
| ● suitable for AS-i Power24V | Yes | |
| ● sequential connected time-delay | No | |
| ● AS-Interface data decoupling | Yes | |
| reset function | No | |
| adjustable current response value current of the current-dependent overload release | A | 4 ... 4 |
| number of electrical connections for signaling contact | 3 | |
| number of outputs for AS-Interface maximum | 1 | |
| display version as status display by LED | EFD, ASI OL, DIAG | |
| design of the switching contact as NO contact for signaling function | No | |
| Communication/ Protocol | ||
| protocol is supported AS-Interface protocol | Yes | |
| Auxiliary circuit | ||
| operational current of auxiliary contacts | ||
| ● at DC-13 at 24 V | A | 0.05 |
| Inputs/ Outputs | ||
| type of voltage | ||
| ● of the input voltages | DC | |
| ● of the input voltage | DC | |
| property of the output short-circuit proof | Yes | |
| output voltage | ||
| ● 1 at DC | ||
| — rated value | V | 30 |
| — rated value | V | 20.5 ... 31.6 |
| ● 2 at DC rated value | V | 24 |
| output current at DC maximum | A | 4 |
| input voltage | ||
| ● 1 at DC | ||
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