Barnett Engineering ProTalk LINK, Руководство по эксплуатации

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P1 INSTALLATION PAGE 17
RS485
The RS485 port performs the same function as the RS232 port. Either
this port or the RS232 port is selected in the configuration; both do not
operate at the same time.
ETHERNET
Ethernet connectivity with the Link system is available through this
port. TCP/IP communications with the PLC and system monitoring
are done here.
Indicators
The indicators are grouped into 4 sections:
1) Status
Run

Flashing Red during startup before a database is received
from the main module

Green during normal operations
RX/TX

Normal operations

Green on receipt of valid message from the main module

Yellow if the message from the main module has a checksum
error. This indicator times out after 400 msec
2) Comm
Port

Green if the Ethernet port has been selected

Yellow if the RS232 port has been selected

Red if the RS485 port has been selected
RX/TX (RS232 and RS485 only)

Solid Green during initial message poll

Solid Red during a message retry
3) Alarm Block
Sixteen, one for each of the first 16 blocks of the system

Flashing Red when any point in a block is in the alarm state

Solid Red when all alarms in a block are acknowledged

Off when all points are idle
4) Ethernet Connector
Link

Illuminated when the cable is connected
Active

Illuminated when packets are being transferred