----- Supply network analyzer CVM 96  Ethernet --------                          -----        Page  No.  33 
 
 
 
10.-  CVM 96 COMMUNICATIONS  
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One or some CVM 96... can be connected to a P.C.. With this system we can get all 
the parameters in one central point of reading.  The CVM 96..., 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 99), since the P.C. needs the identification of 
every measuring point.  
 
10.1.- ! To take into account:  
 
-  PROTOCOL:  MODBUS ©     (Question / Answer)  
 
- CVM 96 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 
96 and the last peripheral of 1.200 m. The CVM 96 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 
96 and the P.C. of 15 m.