Gardner Denver Governor, Руководство пользователя, Страница: 9 / 44

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Figure 2 shows an example of a sequenced set of machines where there is a single master and
three slave machines, or a group of 4 sequenced peer machines.

For the AirSmart and ES+ protocols, any machine in the sequenced network can
automatically take on the role of master or slave depending on the system configuration
and the machines running.

When using the Delcos protocol, the master machine is dedicated and selected through
the controller configuration. For any Delcos network using a Governor controller, a
machine with a Governor controller must be configured as the master of the network.
Figure 2: Example - Master with three Slave Machines
Figure 3 shows example RS485 wiring connections from the master machine to each of the slave
machines in the sequenced system of machines. The communications interface must form a bus
structure so that all compressors are connected in series.