Z-4AI-D
Z-4AI-D permite adquirir hasta N.4 entradas analógicas (ma o V) a través de un PLC con solo entrada / salida digital. La interfaz del PLC se basa en tres señales de tipo PNP adecuadas para la conexión a la mayoría de los PLC disponibles en el mercado. La interfaz se compone de una señal de RELOJ generada por el PLC (salida de transistor), una señal de DATOS y una señal de APROBACIÓN generada por el módulo.
Caracteristicas:
- Interfaz para PLC en el estándar digital de E/S (sólo DC )
- Entrada de voltaje +/- 10 Vdc y de corriente + / - 20 mA dc
- Alimentación de 19 a 40 Vdc ó 19 a 28 Vac (50-60 Hz)
- Tiempo de muestreo ajustable a 400 ms a 14 bits + signo , 200 ms a 13 bits + signo
- Protección de las entradas de hasta 60V
- Aislamiento de entrada a 1500 Vac
- Distancia de conexión hasta 100 m ( con cable blindado)
GENERAL SPECIFICATIONS | |||
GENERAL DATA | |||
Power supply | 19..40 Vdc / 19..28 Vac / 50-60 Hz | ||
Power consumption | 2,5 W | ||
Isolation | 1.500 Vac (3 way) | ||
Power transducers | Yes | ||
Status Indicators | Power supply, error, data transmission, data reception, input status | ||
Protection Degree | IP20 | ||
Operating Temperature | 0..+55 °C | ||
Mounting | 35 mm DIN rail guide | ||
Input | |||
Channel Numbers | 1 | ||
Voltage | (mV, V) Bipolar from 75 mV to 20 V Resolution 15 bit + sign |
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Current | Bipolar up to 20 mA (active/passive) Resolution 1 μA |
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Communication, Memory Process | |||
PLC communication | 3-wire synchronous serial: CLOCK, DATA, STROBE, standard levels 24V pnp. | ||
PLC type | Interface for PLC on standard digital I/O (only DC). | ||
Sampling time | Sampling time settable at 400 ms @ 14 bit + sign, 200 ms @ 13 bit + sign. | ||
Distance | Up to 100 m (with shielded cable) | ||
Signals | |||
Channel Numbers | 4 | ||
INPUT | VOLTAGE: Bipolar with f.s. +/-10V DC or +/- 2V DC, input impedance 100 Kohm, resolution 14 / 13 bit + sign. CURRENT: Bipolar with f.s. +/- 20 mA DC, input impedance 100 ohm, resolution 14 / 13 bit + sign. |
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Programming | |||
Software | The programming necessary for the PLC is extremely reduced: the SIEMENS S7-200 PLC requires one 10 lines of Ladder in order to read the analogue inputs; this corresponds to approx. 187 byte of programming space. It is not necessary to read all the channels: the programming tool can be used to decide which channels to be sent to the PLC. The tool also the selection of the module’s various operating modes: field of measurement, filter, type of serialisation, type of data sent to the PLC, etc. |
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Standard | |||
Approvals | CE | ||
Norms | EN 50081-2; EN 55011; EN 50082-2; EN 61000-2-2/4; EN 50140/141; EN 61010-1 |
Conexión de entrada