TM
the user will be required to correct the interference at his own expense.
4.25"
(108 mm)
2.12
(54 mm)
1.16"
(30 mm)
4.25"
(108 mm)
1.53"
(39 mm)
C
L
C
L
C
L
Wire Opening
Wire Opening
Wire Opening
1.16"
(30 mm)
SERVICE TX RX
MODBUS
OP
Hawkeye® 8920 Series
POWER MONITORING
INSTALLATION GUIDE
H8920-4
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Read, understand and follow the instructions before installing this product.
• Turn off all power supplying equipment before working on or inside the equipment.
• Use a properly rated voltage sensing device to confirm power is off.
DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION
• Only install this product on insulated conductors.
Failure to follow these instructions will result in death or serious injury.
H8920-4
LONTalk Integration Node For Use With
H704 and H663 Branch Current Monitors (BCM)
Installer’s Specifications
LonWor ks® Network Free topolog y transceiver, 78 kbps
Modbus Network RTU 9600 BAUD, 8N1 format
Network Variable Type Fixed point real
Input Power 16-24 VAC/DC, 100mA (max.)
Temperature Range 0 to 60°C (32 to 140°F)
Humidity Range 0 - 95% non-condensing
DIMENSIONS
NOTICE
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classified locations.
• The installer is responsible for conformance to all applicable codes.
• Mount this product inside a suitable fire and electrical enclosure.
FCC PART 15 INFORMATION
NOTE: This equipment has been tested by the manufacturer and found
to comply with the limits for a class A digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case
Modifications to this product without the express authorization of
Veris Industries nullify this statement.
PRODUCT IDENTIFICATION
H8920-4 H704/H663 to LonTalk® integration node
Z203509-0C PAGE 1 ©2011 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 07111
Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.
MODEL DESCRIPTION
H8920-4
TB1
TB2
TB3
TB4
OP
POWER MB
+
SHIELD B A
SERVICE
RX
TX
TB5
TB6
TB7
TB8
-
LON
TM
INSTALLATION GUIDE
OPERATION
The H8920-4 LONTalk Integration Node allows the integration of Veris Industries
H704 and H663 Series branch current monitors (BCM) with a LON Works control/
monitoring system. The H8920-4 converts the metering data network variables
collected by the BCM as Modbus protocol to LONTalk. Using an indexing technique,
the H8920-4 reports the data from up to 63 BCMs on the downstream Modbus
network. Adjusting an input variable allows selection of the Modbus address of the
desired meter. The data is then recorded before selecting another BCM. The H8920-4
can also be used for binding purposes with a single BCM.
The H8920-4 polls the BCM for its full data set approximately once per second. All
output data network variables are immediately updated with this received data.
Data exchanged between the node and the meter are fully checksummed to ensure
integrity. If corrupt data is detected, the output network variables are not updated
and retain their previous value.
PRODUCT DIAGRAM
1. LON Talk Terminal Block: Connect to the LON network at these terminals. This
connection is not polarity sensitive.
2. Shield Terminal Block: Communications shielding for both the LONTalk and
Modbus communications networks.
3. Modbus Terminal Block: Connect to the H704/H663 Modbus network. This
connection is polarity sensitive; ensure correct polarity.
4. 16-24 VAC/DC Power: Two-wire system power terminal block.
5. TX LED: Indicates transmission of Modbus network data
6. RX LED: Indicates reception of Modbus network data
7. Service LED: Standard LON Works Service LED. Used in concert with the Service
Switch to locally view the commissioning status of the device. LED status after the
service switch is pushed:
ON, then OFF solid = Device has been commissioned by a network tool.
BLINK at 1/2 Hz rate = Device has not been commissioned by a network tool.
ON, OFF, then solid ON = Device does not have an application.
8. Identification Service Switch: Standard LonWorks Service Switch. Used in
concert with the Service LED to locally view the commissioning status of the
device.
9. OP LED: Normally on. The OP LED will blink o when there is an incomplete data
exchange between the meter and the LON node. If this LED is always o, then
the meter is not responding to data requests (i.e., the meter is disconnected,
unpowered, or incorrectly wired).
Z203509-0C PAGE 2 ©2011 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 07111
Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.