Circutor CBS8 (Available until stocks) Manual de usuario Pagina 34

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----- Relay Station CBS-8 -------- --- Page No. 33
10.- CBS-8 COMMUNICATIONS...
----
Ed
Rd
16171819202122232425
2627
A2
1528
Power
Supply
COMTEST 2TEST 1
RL 1
RL 2
RL 3
RL 4
RL 5 RL 6
RL 7
RL 8
A1
14
1312
1110987654321
GND
Power
Supply
S1 S1S1 S1S2 S2S2S2
T2 T6T3T7
ALARM
2A 250V
S1 S1S2 S2S2S2S1 S1
T1 T5
T4T8
(+)
RS485
One or several CBS-8 instruments may be connected to a
computer. As well as the usual operation of each instrument this system can
centralise data at one single point. The CBS-8 has a 485 series communication
output. If more than one instrument is connected on one line each one has to be
assigned a number or address (from 01 to 255) so that the central computer sends
data requests to those addresses.
10.1.- Please Note:
- PROTOCOL: MODBUS © (Question/Answer)
- CBS-8 DEFAULT CONFIGURATION: 001/9.600 / 8 bits / N / 1 bit
- Possible speeds : 4.800 - 9.600 - 19.200 bauds
- RS-485 output: Terminal No. Signal
12 --------- TX +
13 --------- TX --
14 --------- GND
- The RS-485 is connected by a plaited insulated communications
cable, three wire minimum, with a maximum distance between PC and
final peripheral of 1,200 metres. The CBS-8 uses an RS-485
communication line that can be connected to a maximum of 32
instruments in parallel (multi-point Bus) for each used COM of the
computer.
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