GE GFK0579B 用户手册
1
Series 90–70 Remote I/O Scanner User’s Manual – July 1992
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Configuration Protection
After configuring a Remote Drop, it is important to prevent inadvertent change while
the system is in operation. For this reason, Logicmaster 90–70 automatically protects
any configuration you download to a Remote I/O Scanner.
the system is in operation. For this reason, Logicmaster 90–70 automatically protects
any configuration you download to a Remote I/O Scanner.
A configuration done with a Hand–held Monitor should be protected as described in
chapter 6.
chapter 6.
Any Hand–held Monitor used with the system while it is operating should be set up
to prevent undesirable configuration changes:
to prevent undesirable configuration changes:
Protect These Remote Drop Fea-
tures
By Setting this HHM Option
Device Number (SBA)
Change Block ID Disabled
Reference Address
Data Lengths (%I, %Q, %AI, %AQ)
Remote Drop ID
Module Options: Output Defaults
Input Filter Time Voltage Range
Input Filter Time Voltage Range
Baud Rate
Change Block Baud Disabled
Configuration Protection
Redundancy Options *
Change Block Config Disabled
*
Not available with Remote I/O Scanner version IC697BEM733A.
To prevent access to restricted HHM configuration options, remove the HHM key.
Caution
If configuration protection is removed from the Remote I/O Scanner
and the Hand–held Monitor’s Change Block ID option is
ENABLED, the HHM’s automatic configuration capability can
overwrite any existing I/O configuration, including one created using
Logicmaster 90–70, or downloaded using a Write Map datagram.
and the Hand–held Monitor’s Change Block ID option is
ENABLED, the HHM’s automatic configuration capability can
overwrite any existing I/O configuration, including one created using
Logicmaster 90–70, or downloaded using a Write Map datagram.
This automatic reconfiguration will also set any module options (see
the table above) back to their defaults.
the table above) back to their defaults.