| SIMATIC S7, analog output SM 332, isolated, 4 AA; 0/4 to 20 mA, 20-pole, for signals from the hazardous area, diagnostics-capable, PTB tested |
| Supply voltage |
| Load voltage L+ |
| Rated value (DC) | 24 V |
| Reverse polarity protection | Yes |
| Input current |
| from load voltage L+ (without load), max. | 200 mA |
| from backplane bus 5 V DC, max. | 80 mA |
| Power loss |
| Power loss, typ. | 4 W |
| Analog outputs |
| Number of analog outputs | 4 |
| Voltage output, short-circuit protection | Yes |
| Voltage output, short-circuit current, max. | 70 mA |
| Current output, no-load voltage, max. | 14 V |
| Output ranges, current |
| 0 to 20 mA | Yes |
| 4 mA to 20 mA | Yes |
| Connection of actuators |
| for current output two-wire connection | Yes |
| Load impedance (in rated range of output) |
| with current outputs, max. | 500 Ω |
| Cable length |
| shielded, max. | 200 m |
| Analog value generation for the outputs |
| Integration and conversion time/resolution per channel |
| Resolution with overrange (bit including sign), max. | 15 bit |
| Basic conversion time (ms) | 2.5 ms |
| Errors/accuracies |
| Operational error limit in overall temperature range |
| Current, relative to output range, (+/-) | 0.55 % |
| Basic error limit (operational limit at 25 °C) |
| Current, relative to output range, (+/-) | 0.2 % |
| Interrupts/diagnostics/status information |
| Diagnostics function | Yes |
| Diagnostic messages |
| Diagnostic information readable | Yes |
| Overrange | Yes |
| Wire-break in actuator cable | Yes |
| Diagnostics indication LED |
| Group error SF (red) | Yes |
| Channel fault indicator F (red) | Yes |
| Ex(i) characteristics |
| Module for Ex(i) protection | Yes |
| Maximum values of output circuits (per channel) |
| Co (permissible external capacity), max. | 850 nF |
| Io (short-circuit current), max. | 70 mA |
| Lo (permissible external inductivity), max. | 6.6 mH |
| Po (power of load), max. | 440 mW |
| Uo (output no-load voltage), max. | 14 V |
| Potential separation |
| Potential separation analog outputs |
| Potential separation analog outputs | Yes |
| Permissible potential difference |
| between the outputs (UCM) | 60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area |
| Between the outputs and MANA (UCM) | 60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area |
| Standards, approvals, certificates |
| Use in hazardous areas |
| Type of protection acc. to EN 50020 (CENELEC) | [EEx ib] IIC |
| Type of protection acc. to FM | Class I, Division 2, Group A, B, C, D T4 |
| Test number PTB | Ex-96.D.2026X |
| Ambient conditions |
| Ambient temperature during operation |
| max. | 60 °C |
| Connection method |
| required front connector | 20-pin |
| Weights |
| Weight, approx. | 280 g |
| last modified: | 03/04/2019 |
