Delta AH500 series, Hardware Operation Manual

Page: 481 / 681

A H 5 0 0 H a r d w a r e a n d O p e r a t i o n M a n u a l
11 - 3 2
Device Name R/W Description
ON: The master station is detecting the slave
stations.
SM1595
Assigning slave station addresses
automatically/manually
R/W
OFF: The station addresses assigned to all
the slave stations start from the station
address in SR1756. (Default)
ON: Users assign station addresses to all
the slave stations.
SM1596 PLC Link error R
If an error occurs when a PLC Link is
executed, SM1596 will be ON. If no error
occurs when a PLC Link is executed,
SM1596 will be OFF.
OFF: No error occurs. (Default)
ON: An error occurs.
SM1597
Using an extension communication
port
R/W
If SM1597 is ON, an extension
communication port will be used to send a
command. If SM1597 is OFF, a
communication port on the master station is
used to send a command.
OFF: No extension communication port is
used. (Default)
ON: An extension communication port is
used.
SM1598
Enabling the function of reading
data and writing data synchronously
R/W
If SM1598 is ON, t If SM1598 is OFF, t
OFF: The function of reading data and
writing data synchronously is disabled.
ON: The function of reading data and writing
data synchronously is enabled.
*2
。
*1. If the master station automatically detects that the station address of a slave station is the same as its
station address, it will not connect to the slave station.
*2. If the reading of data and the writing of data are synchronous, the device type used for reading must be the
same as the device type used for writing. Otherwise an error will occur.
2. Descriptions of the read-only devices SM1588~SM1592:
Device Description
SM1588
When the master station detects the slave stations automatically, SM1588 is ON.
When the master station finishes detecting the slave stations, SM1588 is OFF.
SM1589
If SM1586 and SM1587 are ON, SM1589 will be ON, and SM1584 will be OFF.
If no error occurs when the PLC Link is executed again, SM1589 will become OFF
automatically.
SM1590
If communication address error occurs when data exchange is performed, SM1590
will be ON. If no communication address error occurs when data exchange is
performed, SM1590 will be OFF.
SM1591
If a timeout occurs when data exchange is performed, SM1591 will be ON. If no
timeout occurs when data exchange is performed, SM1591 will be OFF.
SM1592
If the value in SR1338 is 0, SM1592 will be ON, and SM1587 will be OFF.
If the value in SR1338 is a legal value when SM1587 is ON, or if the value in
SR1338 is a legal value when SM1584 is ON, SM1592 will be OFF.