(1) MV of SEL (loop selector) is transferred to the primary loop when the control mode of SEL is manual (MANUAL, COMPUTER MV) or when the variation rate
and high/low limiter alarm occurs in other than the MANUAL (AUTO, CASCADE, COMPUTER SV) mode.
The primary loop with tracking setting to the SEL is tracked.
■Cascade connection when tracking is required
Connect CASOUT_T of the primary loop with CASIN_T of the secondary loop. The tag FB of secondary loop should be the
one with CASIN_T (such as (M+M_PID_T, M+M_2PID_T).
(1)
(1) Primary loop
(2) Secondary loop
When tracking is executed, tracking setting for the operation constant of the secondary loop tag FB is required.