Emerson Exchange 365
Search
Sign-In / Register
Site
Search
Sign-In/Register
Services
Products
Control & Safety Systems
Asset Management
Measurement Instrumentation
Valves, Actuators & Regulators
Fluid Control & Pneumatics
Electrical Components & Lighting
Welding, Assembly & Cleaning
IIoT & Digital Transformation
Industries
Chemical
Food and Beverage
Industrial Energy
Life Sciences
Oil & Gas
Power
Refining
Other Industries
Women in STEM
Events
Düsseldorf 2024
Immerse - Anaheim 2023
Grapevine 2022
Nashville 2019
San Antonio 2018
The Hague 2018
World
China
South Korea
Russia
More
Cancel
Products
More
Control & Safety Systems
DeltaV Forum
I/Os and DST
Forums
Blogs
Library/Resources
Members
Tags
More
Cancel
Create New Post
Comment or Question? Become a member of this Emerson Exchange 365 group. Click here to join.
Recent Control & Safety Systems Discussions
Douglas Crowder
1 Apr 2024 5:20 AM
How to remove Live button from Flexlock
1 Reply
TreyB
28 Mar 2024 4:57 PM
Local accounts after joining domain
10 Replies
TreyB
27 Mar 2024 5:48 PM
Remote Desktop only working on Primary ACN
5 Replies
frankfu
27 Mar 2024 3:02 PM
loss communication between redundancy DeltaV PK and redundancy Ehternet/ip every 5 minutes?
0 Replies
TreyB
15 Mar 2024 9:33 PM
GEM broke my displays
1 Reply
<
>
Similar Posts
DST Count
DST references
Fieldbus Licensing and DSTs
DST Licenses for ET200S
Serial data DST counting
Share
I/Os and DST
IS I/O the same as DST? DST= Device Signal Tags
2 Replies
PRASHANT-MUTTEPAWAR
30 May 2018 1:23 PM
yes both are same
John Rezabek
30 May 2018 2:46 PM
Broadly speaking they are connected. A few nuances . . .
1) 100 "SCADA" points coming in over serial modbus will consume 1 DST for the Dataset.
2) Fieldbus I/O consume 1 DST per device no matter how many I/O are configured, so e.g. a coriolis meter might have mass flow, volume flow, and density and temperature all configured but you will use only one DST. Discrete I/O for on-off valves - same thing.
3) The same is true for wired HART. WirelessHART I believe works the same as well.
4) As best I know conventional and remote IO consume 1 DST per input / output so for that case IO count = DST count (although all DST's are not equal, last I checked).
Hope this helps . . .