ABB ControlMaster CM10 - PC Configuration; PC Configuration via IrDA Service Port

ControlMaster CM10, CM30 and CM50
Universal process controllers,
1
/8,
1
/4 and
1
/2 DIN 8 Templates and Functionality
IM/CM/S–EN Rev. R 105
The auto-manual station and analog backup station templates can be used in series or in parallel with the master output signal.
Parallel operation is achieved by using an external relay that is triggered by a relay on the ControlMaster, and selects the output
to be routed to the process. This setup allows uninterrupted control, even in the event of failure of either the master controller
or ControlMaster.
*External relay type is triple-pole, dual-throw.
Fig. 8.4 Parallel Connection

+
AIN 2 –
AO 1 +
PV
Control
Output
Master
Controller
AO 1 –
NC
NC
NC
AIN 2 +
Output
RLY1
AIN 1
External Relay*