![background image](http://html1.mh-extra.com/html/eaton/pdi-wavestar-bcms/pdi-wavestar-bcms_installation-and-operation-manual_4157986014.webp)
6
Eaton PDI WaveStar BCMS Hub Installation and Operation Manual P-164001108—Rev 01
22..66..22
C
Coouunnttiinngg EElleeccttrriiccaall LLooaaddss aanndd M
Mooddbbuuss A
Addddrreesssseess
You must be sure to stay within the Modbus limits. Figure 3 illustrates counting electrical loads and Modbus
addresses on the BCMS Hub downstream link to its devices.
22..66..33
EExxaam
mpplleess,, M
Maaxxiim
muum
m C
Coonnffiigguurraattiioonnss
The following are examples of maximum configurations for either electrical loads or Modbus addresses:
(32) RPPs or JCOMMs each with Monitors, (2) BCMS PCBs, and (4) panelboards (Monitors are the electrical
loads):
•
(32) RPPs or JCOMMs with Monitors =
(32) Electrical Loads
(maximum)
•
(32) RPP or JCOMMs each with (1) Monitor and (4) PBs = 32 x 5 = (160) Modbus addresses
(16) RPPs or JCOMMs without Monitors, each with (2) BCMS PCBs and (4) panelboards (BCMS PCBs are the
electrical loads):
•
(2) BCMS PCBs per RPP or JCOMM: 16 RPPs/JCOMMs x 2 PCBs =
(32) Electrical Loads
(maximum)
•
(4) Panelboards per RPP or JCOMM: 16 RPPs/JCOMMs x 4 PBs = (64) Modbus addresses
(24) Bus System End Feeds with (9) Tap-Off Boxes each:
•
(24) End Feeds = (24) Electrical Loads
•
(24) Bus Runs with (10) addresses each (1 End Feed + 9 Tap-Off Boxes) =
(240) Modbus Addresses
(near
maximum)
22..66..44
D
Deetteerrm
miinniinngg M
Mooddbbuuss A
Addddrreesssseess
Monitors are Modbus clients on their segment and adjust the Modbus addresses of their downstream devices
based on their own address. Because the BCMS Hub is a Modbus client and Monitors downstream in RPPs or
JCOMMs are also Modbus clients on their own segments, multiple address adjustments can occur. These
address adjustments can be confusing.
On the BCMS Hub
Home
screen you have a choice of showing devices Modbus addresses as seen from the
BCMS Hub or Modbus addresses as seen from the BMS or DCIM system (assuming the BMS or DCIM is next
upstream from the Hub). Using Offset = √ on
Modbus Settings
will show addresses on the
Home
screen as
seen from the BMS. This setting is recommended because it makes it easy to coordinate Modbus addresses
between the BCMS Hub and the BMS. See paragraph
.
Содержание PDI WaveStar BCMS
Страница 1: ...p n P 164001108 Revision 01 Installation and Operation Manual Eaton PDI WaveStar BCMS Hub...
Страница 4: ......
Страница 8: ...viii Eaton PDI WaveStar BCMS Hub Installation and Operation Manual P 164001108 Rev 01 List of Figures...
Страница 10: ...2 Eaton PDI WaveStar BCMS Hub Installation and Operation Manual P 164001108 Rev 01 Safety...
Страница 28: ...20 Eaton PDI WaveStar BCMS Hub Installation and Operation Manual P 164001108 Rev 01 Installation...
Страница 38: ...30 Eaton PDI WaveStar BCMS Hub Installation and Operation Manual P 164001108 Rev 01 System Setup...
Страница 52: ...44 Eaton PDI WaveStar BCMS Hub Installation and Operation Manual P 164001108 Rev 01 Glossary...
Страница 54: ...P 16400110801 P 164001108 01...