Configure the Gateway
104S
♦
ProLinx Gateway
Protocol Manual
(Firmware v3.00 and later)
Page 44 of 157
ProSoft Technology, Inc.
January 22, 2010
2.20.5 Delay Preset
This parameter sets an interval for each
Data Map
copy operation. The value you
put for the
D
ELAY
P
RESET
is not a fixed amount of time. It is the number of firmware
scans that must transpire between copy operations.
The firmware scan cycle can take a variable amount of time, depending on the level
of activity of the protocol drivers running on the ProLinx gateway and the level of
activity on the gateway’s communication ports. Each firmware scan can take from 1
to several milliseconds to complete. Therefore,
Data Map
copy operations cannot be
expected to happen at regular intervals.
If multiple copy operations (several rows in the
Data map
section) happen too
frequently or all happen in the same update interval, they could delay the process
scan of the gateway protocols, which could result in slow data updates or missed
data on communication ports. To avoid these potential problems, you should set the
D
ELAY
P
RESET
to different values for each row in the
Data Map
section and set them
to higher, rather than lower, numbers.
For example,
D
ELAY
P
RESET
values below 1000 could begin to cause a noticeable
delay in data updates through the communication ports. And you should not set all
D
ELAY
P
RESETS
to the same value. Instead, use different values for each row in the
Data Map such as 1000, 1001, and 1002 or any other different
D
ELAY
P
RESET
values you like. This will prevent the copies from happening concurrently and
prevent possible process scan delays.
Summary of Contents for ProLinx 104S
Page 4: ......
