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Cod. Carel. +030221221 – rel. 1.0 dated 20/02/01
4
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nd
+ -
no nc c
no c
230 V
no nc c
Rs232
Tel.
Line
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Tx Rx
Dcd
Dtr
Fig. 1.3.1
Meaning of the internal LEDs on the modem board (model PLW00M0000 only)
Tx (red)
Data transmission
PW
⇒
remote modem
Rx (green)
Data reception
PW
⇐
remote modem
Dtr (yellow)
Data terminal ready
PW modem ready
Cd (yellow)
Carrier detect
connecting to the remote modem
Description of the connectors
$
6-way RJ-11 for PSTN telephone line
(only for version with internal modem)
B
8-way RJ-45 for RS232 serial (downloading log, uploading parameters, code and external modem connection)
C
3-way RS485 serial terminal for connection to Carel controllers and printer board
D
3-way terminal for 230V alarm signal (relay)
E
2-way terminal for 230V external modem reset (relay)
F
230V or 110V power supply (depending on the version)
Warnings and use of the channels
1
Use channel
to pass the telephone line cable; no other cables, not even very low voltage cables, may pass through
channel
2
Use channel
for the RS485 line that connects the Carel instruments, it may also be used at the same time to pass the
lines carrying any very low voltage safety loads activated by relays D and E. This channel can also be used for the
RS232 line if using the external modem or a permanent connection to the personal computer
3
Channel
should be used to pass the PlantWatch power supply line and for the lines of any mains voltage loads
activated by relays D and E
Содержание PlantWatch
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