Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 101)

Publication 1757-UM006A-EN-P - May 2002
Configurating the 1757-FIM 4-15
8. In the Local Clock Time Offset (LOCTIMDIFF) field, either leave
the default value of 0, or enter a new value.
This value is used to calculate the local time from the Curr App
Clock Time (CURTIME) in the number of +/- 1/32 millisecond
increments to add to the clock to obtain local time.
9. In the App Clk Sync Interval (ACSYNCINTR) field, either leave
the default value of 5, or enter a new value.
This value is the interval in seconds between time messages on
the link. System management sets it during node address
assignment. Set it 5 because this is a good compromise for more
information see page 4-6.
10. In the Addr of Lnk Primary Time Pub (PTIMEPUB) field, either
leave the default value of 20, or enter a new value.
This value is the node address of the primary time publisher for
the local link. System Management sets it during node address
assignment. It is a configuration error if the SM Support
(SM_SUPPORT) parameter of the device specified by this node
address does not have the Application Clock Synchronization
feature bit set.
11. To enable the SMK Operational Power Up state (OPERPWRUP),
click the check box next to the field.
• If the device is in the SM_OPERATIONAL state or fully
commissioned and operating when power is lost, this
parameter controls which state the SMK will enter after
powerup.
• If OPERPWRUP is enabled, the SMK will enter the
SM_OPERATIONAL state on powerup.
• If OPERPWRUP is disabled, the SMK will enter the
INITIALIZED state.