Posts Tagged process automation controller

Honeywell Increases Analog/Loop Processing Speed on HC900 Process and Safety Controller

Written by: Dan Weise

Good news!  Recent upgrades to Honeywell’s HC900 Process and Safety Controller includes a major update to analog/loop processing speeds. Even though analog/loop cycle time has been 500mS since the early 2000s, early versions of the HC900 controller were only capable of a processing speed of 2x/second.

The upgrade to the HC900 CPU’s microprocessor hardware and an associated firmware update broke that processing speed limit for their SIL-rated CPUs. Honeywell C50S and C70S model CPUs v6.1 will now process analog inputs and loops at a rate of 10x/second (100mS per update). If your process needs additional analog/loop throughput speed, you will benefit from these enhancements to the HC900 systems.

To run at 100mS, a qualified hardware configuration is required:

Read the rest of this entry »

, , , , , , , , , , , , ,

Leave a comment

How can I use a controller to detect thermocouple drift?

If you use thermocouples in high-temperature applications, you’re aware of the issues thermocouple drift can cause. Thermocouples drift. It’s not a question of IF, it’s a question of WHEN. And thermocouple drift costs processors time and money in processing errors, waste, downtime, and lost production.

Thermocouple drift occurs due to metallurgical changes of the metal alloy elements over the extended use of the sensor. Thermocouples can drift by as much as several degrees per year.

Read the rest of this entry »

, , , , , , , , , , , , , ,

4 Comments

%d bloggers like this: