Micromod MOD: 30ML Operation and Template Setup Manuel d'utilisateur télécharger pdf (Page 50)

MOD 30ML Multiloop Controller

OPERATION

3-18

It may also be desirable for the set-point of the master to track the master process variable.

This depends on the desirability of permitting the set-point of the master to vary indirectly in

response to changes at the slave controller.

3.12.2 Cascade Operation in Auto

Since the control element (valve, air damper, etc.) is directly manipulated by the slave, the

cascade master is configured to permit only auto mode which simplifies operations by

ensuring that all mode transfers and manual intervention can be accomplished exclusively at

the slave.

Master Controller Slave Controller

Remote slave set-

point tracks master

output.

Local set-point.

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Micromod MOD: 30ML Operation and Template Setup Manuel d'utilisateur Page 50