Chatsworth Products Remote Infrastructure Management System Protocol Converter - Manual (Page 35)

RIM-Protocol Converter User Guide - Version 1.0
Chatsworth Products, Inc. (CPI) • 800-834-4969 35
Table 3.5 Modbus Register Configuration Page Options
2. Click Submit Changes located in the upper left hand corner of the web page.
3. Once the changes have been accepted, click the Next>> link in the bottom navigation bar to configure the next register.
You can also click the First, <<Prev, Last, or End links to go to those locations in the list of registers.
Figure 3.14 Register Configuration Navigation
Option Description
BACnet Instance
The number used by a BACnet master for polling data from the Protocol
Converter.
Possible values include Analog Instance (AI) or Binary Instance (BI).
BACnet Engineering Units
In the BACnet ASHRAE standard, numbers correlate with units of measure.
Refer to the BACnet ASHRAE standard for more information.
BACnet COV Client
(COV - Change of Value) The IP address of the BACnet master that is polling the
RIM Protocol Converter.
BACnet COV SPID
Enter the Subscriber Process Identifier. You’ll also need to designate if it
should be Confirmed or Unconfirmed.
Confirmed: When a change of value is sent to the device, it will look for
an acknowledgement of the change to be sent in response. If no
acknowledgement is received, the change will be sent again. This cycle will
repeat until an acknowledgement is received.
Unconfirmed: A change of value is sent, and the device doesn’t look for an
acknowledgement.
Select the Confirmed or Unconfirmed radio button to
indicate your preference.
BACnet COV Increment
Amount that the present value of a point needs to change before the change of
value message is initiated to the BACnet master.
BACnet COV Period Interval, in seconds, between polling operations.
SNMP register/Table OIDs
The OID (object identifier) being polled from the SNMP software. The Protocol
Converter displays the OIDs used for Integer data, Float data, and the Label
assigned.
SNMP Modbus Device
Register/Table OIDs
Formatted to
BASE.DEVICENUMBER.REGISTERNUMBER where
BASE is the OID for this table, DEVICENUMBER is the
device’s number in the Protocol Converter (1-32) and the
REGISTERNUMBER reflects the appropriate device point
address.