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ICC
8.8.2
A.O. Smith PDNP Master
A.O. Smith PDNP (Proprietary Device Network Protocol) Master can be
configured on the RS-485 port by selecting
AO Smith PDNP Master
from the
protocol dropdown menu. The PDNP Master protocol uses service objects to
make requests. For more information on service objects, refer to section 8.5.
Each parameter in a service object is mapped to 2 bytes in the database (the
data size is fixed at 16-bit, as this is the native data size of PDNP parameters).
For more information on parameter mapping, refer to section 11.2.2.
8.8.2.1
Protocol Selection Group
Protocol
Select
AO Smith PDNP Master
from this dropdown menu.
Timeout
This is the time in milliseconds that the device will wait for a response from a
device after sending a request.
Scan Rate
This is the time the device will wait between sending requests. This may be
useful if devices require additional time between requests. If no additional delay
time is needed, set this field to 0. For more information, refer to section 8.4.
8.8.2.2
PDNP Service Object Configuration
This section describes the configurable fields for a PDNP service object. For
more information on PDNP service object editing options, refer to section 8.6.
Description
This field is a description of the service object. It is not used on the gateway, but
serves as a reference for the user. Enter a string of up to 16 characters in length.
Dest Address
This field indicates the destination address of the device on the network that will
be accessed by this service object. Enter a value between 0 and 31 to target a
specific device.
Start Param
This field defines the starting parameter number for a range of parameters
associated with this service object. Enter a value between 0 and 126.
Num Params
This field defines the number of parameters associated with this service object.
Enter a value between 1 and 127.
