WaveStar Color Monitor_____________________________________________________________
Ctrl Nr: PM375103 Revision: 003
22
4
Device Chain: Settings
A “device” is a points list (or Modbus register map) representing a physical monitored entity, such as a
panelboard. Each points list instance has a single Modbus address.
A single PCB can have multiple devices with their own Modbus addresses. A BCMS Data Acquisition
Board, for example, can have two panelboard devices plus a small two-subfeed device, or up to three
Modbus addresses.
A device may also encompass more than one PCB. A PDU device with a single Modbus address
represents both a PDU M4G board and a PDU contractor board.
Points lists are loaded onto PCBs during manufacturing.
4.1
Initial Device Chain
Upon initial power-on, the Monitor searches its Modbus device chain for devices up to the device
count given in
SETUP
. The
DEVICES
screen lists all devices in the Moni
tor’s downstream chain
(Figure 16). Each device in the
Monitor’s device chain has
•
a unique Modbus address,
•
a device type that is identified by its Modbus slave ID, and
•
its own points list (Modbus register map).
In the
DEVICES
screen device list, the Monitor displays the devices it finds in order of discovery using
these device types and default generic names:
1.
PDU
(Power Distribution Unit) with PDU transformer measurements and contractor board
alarms and relays
2.
BCMS ESF
(BCMS Enhanced Subfeeds) for large PDU subfeeds (e.g., 250A)
3.
BCMS
(BCMS Normal panelboard points list), which lets you customize alarm settings for
individual circuits)
4.
BCMS KWH
(BCMS KWH panelboard points list), which provides power usage
measurements for individual panelboard circuits
5.
BCMS CB
, a small points list, associated with BCMS Normal or KWH points lists, with current
measurements for two subfeeds from a PDU or RPP.
6.
BCMS IEC
, a points list similar to BCMS KWH, for IEC 36 or 72 circuit panelboards.
The initial device list shows the generic
device types discovered by the Monitor in
its device chain.
In this example, there is a PDU with two
BCMS-monitored panelboards and the
generic BCMS device name appears
twice.
Users should change these generic
device names to unique names, in device
SETTINGS
, which is necessary to isolate
alarms to specific devices.
Figure 16 Initial Device List
