Antx DiaLog Elite, Руководство пользователя

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DiaLog Elite PLC Interface Manual
Modbus
Comm.
Failure Alarm
06 Communication
Op
Al
Exit
Å Æ
Scrl
F1 F2 F3 F4
Channel in alarm
Op – Open – Loss of
communication
Al - Alarm
The Modbus Communication Failure Alarm can be caused by:
•
incorrect physical connection
•
incorrect Modbus ID
•
incorrect mapping of Elite I/O to PLC I/O – i.e. the PLC is not responding to the
request to read/write the specific registers programmed
I/O channel
alarm
71 Your channel name
Op
Al
Exit
Å Æ
Scrl
F1 F2 F3 F4
Channel in alarm
Op – Open – current
condition
Al - Alarm
If an I/O channel is in alarm the display will look like above. If more than one channel is
in alarm you can press the
F4 key to scroll through all channels automatically or press the
F2
and
F3
arrow keys to move through the list.
Confirming Modbus Slave Communication
To confirm that the Elite is reading the proper PLC/Modbus I/O use the View option
F1
from the RUN mode screen.
The following display is presented.
Display Chan Values
Ch # [01-98]:
Exit
F1 F2 F3 F4
.
16
Version 1.2
©
Antx, inc. 2001