Echelon OpenLNS - Manual (Page 632)

OpenLNS Programmer's Reference 595
variable’s type, or it is set to
the default format for the
network variable given the
locale settings currently in
effect.
FALSE. The DsFormatType property is
not the same as the network
variable’s type.
For example, if the current locale
settings are set to use US measurement
units, then for a network variable of
type SNVT_temp_f, the
DsIsDefaultFormat property will return
True if the DsFormatType property is
set to SNVT_temp_f or
SNVT_temp_f#US.
nvObject The NetworkVariable object to be acted
on.
Data Type Boolean.
Read/Write Read-only.
Added to API Prior to LNS Release 3.0.
DsPollInterval
Summary Specifies the poll or throttle interval (in tenths of a second)
used by the Data Server. For remote clients using the shared
Data Server mode, this property specifies the batch update
rate .
The DsPollInterval property specifies either a poll or throttle
interval, depending on the context in which it is used.
•
For polled network variables, the property specifies the
interval between polls. Setting the value to 0 disables
polling.
• For bound network variables, the property specifies the
minimum interval which must elapse before the Data
Server will generate an update event. The throttling
interval may be used to regulate the rate in which
OnNetworkVariableUpdate events occur.
Remote client applications that use shared access mode
receive batched data updates. Instead of receiving individual
network variable value updates over the IP network, the
client receives a regular update containing the updated
values for the monitored network variables. In this scenario,
the System object's DsPollInterval property specifies the
batch update rate for each network variable. If you are
developing a remote application that uses shared access
mode (meaning that the DsMode property is set to
lcaDsModeShared), you cannot set the NetworkVariable