Circutor CVM144 Series Manuale Utente Scaricare il pdf (Pagina 46)

----- Supply network analyzer CVM-144 ------ User's manual --- Page No. 45

11.- CVM-144 COMMUNICATIONS

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One or some CVM-144... can be connected to a P.C.. With this system we

can get all the parameters in one central point of reading. The CVM-144..., has a

serial RS-485 or RS-232 type output (according to the model). If we connect more

than one device to the same communication line (RS-485), we have to assign to

each of them a different code or direction (from 01 to 255), since the P.C. needs the

identification of every measuring point.

11.1.- To take into account !:

- PROTOCOL: MODBUS © (Question / Answer)

- CVM-144 DEFAULT CONFIGURATION : 001 / 9.600 / 8 bits / N / 1 bit

- Available baud rates: 1.200 - 2.400 - 4.800 - 9.600 - 19.200 bauds

- RS-485 type output:

-RS-485 connection will be carried out by means of a twisted and

screened cable, with a minimum of 3 wires, with a maximum distance

between the CVM-144 and the last peripheral of 1.200 m. The CVM-144 uses

a RS-485 communication bus allowing up to a maximum of 32 devices in

parallel (Multi-point bus) per port used in the PC.

- RS-232 type output:

-RS-232 connection will be carried out by means of a twisted and

screened cable, with a minimum of 3 wires, with a maximum distance

between the CVM-144 and the P.C. of 15 m.

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Circutor CVM144 Series Manuale Utente Pagina 46