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4.3.3 Communication
There are three communication protocol sub-menus available on the
Communication
screen:
Ethernet,
RS485 0,
and
RS485 1
.
Note, certain machine configurations will show an additional RS485 port labeled
RS485 2
, which will have
identical settings to the
RS485 1
port.
Ethernet:
Under
Ethernet
settings, the following parameters can be set:
Ethernet Configuration Mode
between
Static
and
DHCP
from drop down menu,
IP Address
with number pad entry,
Subnet Mask
with number
pad entry, and
Gateway Address
with number pad entry. Figure 92 below shows the
Ethernet
tab settings.
Note that if the controller is set to DHCP it will automatically attempt to retrieve IP network settings from a
local DHCP server. In this case you will not be able to set the other values and the IP addresses that are
acquired will be shown in the respective fields.
Figure 92: Ethernet
RS485 0:
Communication
Mode
can be selected between
Disabled, Sequence
– AirSmart, Sequence – Delcos,
Sequence
– ES+, Modbus Master,
and
Modbus Slave
from drop down menu. Figure 93
below shows the
mode selection drop-down menu options.
Table 33: Communication Modes
Communication Modes
Mode
Function Description
Disabled
The communication mode for this port is disabled and not functional
Sequence
– AirSmart
AirSmart Protocol can sequence up to 8 variable speed or fixed speed compressors or
a mix of the two. This protocol is designed to handle sequencing and load sharing for
direct and optimal control
Sequence
– Delcos
Delcos Protocol can sequence up to 4 compressors, one compressor must be
configured as the master with up to 3 slaves connected. All slave machines run off the
master machine’s delivery pressure sensor.