Tmdt Time And Date Function Block; Table 115 Time And Date Configuration Parameters - Honeywell HC900 Reference Manual

Function Blocks

TMDT Time and Date Function Block

TMDT Time and Date Function Block
Description
The TMDT label stands for Time and Dat e. This block is part of the Counters/Timers category.
Function
Controls change between Daylight Saving and Standard time. Indicates when controller time is in Daylight
Saving. If the controller is using a network time server, indicates if the connection to server has failed.
Inputs
DSTI – When ON the controller will be in Daylight Saving time. When OFF the controller will be in
Standard time. Use of this pin requires configuring the controller time to use DSTI.
Outputs
DSTO – ON when controller is in Daylight Saving time. OFF when controller is in Standard time. To set
up Daylight Saving time, see Set Controller Time in HC Designer configuration software.
NTFAIL – ON when connection to network time server has failed. Note: controller's time is synchronized
to the time server every few hours, therefore this pin can take a few hours to detect the failure.
Block Properties
Configurable Parameters
Properties Group
Block Order
402

Table 115 Time and Date configuration parameters

Parameter Index #
N/A
HC900 Hybrid Control Designer Function Block Reference Guide
Parameter Description
Execution Order for Block
Value or
Selection
Read Only. To
change block
order, right-
click on a
Function Block
and select
Execution
Order.
Revision 11
2/07