Circutor Computer SMART III FAST 12, Инструкция по эксплуатации

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4�9�4� EXAMPLE OF A MODBUS QUERY
Query:
Instantaneous value of the L1 phase voltage
Address Function Initial log No� of logs CRC
0 A 04 0000 0002 70B0
Address: 0A
, Peripheral number: 10 in decimal.
Function: 04 , Read function.
Initial Log: 0000 , log from which to start reading.
No� of logs: 0002
, number of logs to be read.
CRC: 70B0 , CRC character.
Response:
Address Function No� of Bytes Log no� 1 Log No� 2 CRC
0 A 04 04 0000 084D 8621
Address: 0A
, Responding peripheral number: 10 in decimal.
Function: 04 , Read function.
No� of bytes: 04
, No. of bytes received.
Log: 0000084D , value of the L1 phase voltage: VL1 x 10 : 212.5V
CRC: 8621 , CRC Character.
4�10�- CPC-NET COMMUNICATIONS
Computer SMART III FAST
series regulators are designed to control static capacitor banks where they
can operate through optoMOS relay outputs or through communications.
If communications are used, they must be connected to
CPC3i-xRS
zero switching control boards.
The Computer SMART III FAST connection with the board will be made through the CPC-NET channel,
in accordance with the connection table,
Table 42
. Also consult the terminal diagrams in
Figure 2
and
Figure 18
.
Table 42: Table showing the CPC3i to Computer SMART III FAST connection�
CPC3i-xRS Computer SMART III FAST
Function
Terminal Name Terminal Name
A SH 44 S Communication cable screen
B RS+ 42 A(+) Transmitter / Re
C RS- 43 B (-) Transmitter / Receiver -
Each CPC3i board of a static capacitor bank must be configured with a different address (1 to 16) for
each step, using a rotating ADJ switch with the CPC3i board. (
Figure 18
)
66
Computer SMART III FAST
Instruction Manual