Veris Industries H8830 Install - Manual (Page 2)

H8830
ZL0069-0A PAGE 2 ©2010 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 10102
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TM
INSTALLATION GUIDE
Modbus Hookup: 4. Attach any Modbus slave or master devices to the RS-485
terminals as shown in the wiring diagram. Multiple Modbus devices may be
attached to each H8830.
Note: When attaching Modbus devices, it is not necessary to specify if the device
is a master (H8820, PLC, etc) or a slave device (power meter, sensor, etc). The
H8830 will automatically detect the master and handle it appropriately.
Attach the Antenna: 5. Attach the antenna to the side of the H8830. The antenna
should be finger tight and be placed in a vertical position.
Power up the H8830: 6. Attach the power brick to the power jack on the H8830.
The device should power up and be ready in a few seconds. The LEDs should blink
in the following manner.
The Alive LED should start to blink about once per •
second.
The Alarm LED will blink if transmission errors occur.
•
The RF TX/RX LEDs will blink when the radio is •
receiving or transmitting data.
The RS-485 LEDs will blink for local Modbus activity.
•
The Pulse input LEDs will light when the •
corresponding pulse input terminals are closed.
oPeration
The H8830 wireless Modbus®/pulse transceiver from Veris Industries is perfect for
submetering commercial and industrial facilities and adding Modbus devices to
any network without the need for costly communications wiring. The input port
on the H8830 easily connects to new or existing Modbus and pulse devices (meters,
sensors, etc.) to automatically detect the optimum route for reliable and timely data
communications. Data from each H8830 passes from one transceiver to another to
reach its ultimate destination. This self-managed mesh network allows the system
to function with high reliability where other wireless systems fail due to short- or
long-term interference from radio signals
installation
Modbus Address: 1. Every Modbus device in the system
must have a unique address. This includes each H8830 and
every attached RS-485/Modbus device. Select an address
and set the DIP switches to match. The sum of the value
of the switches is the address. In the example to the right,
set address 52 by placing switch 4, 16, and 32 to the ON
position.
System Switches: 2. For most systems, set all of the system switches to the “OFF”
position. The only required switch is the RS-485 baud rate option. Set this to “OFF”
for 19200 or to “ON” for 9600. The example below is a default configuration for
9600 baud on the RS-485 connection.
Pulse Hookup: 3. Attach any dry contact pulse
output meters to the pulse input terminals as
shown in the wiring diagram to the right. The
H8830 can support two pulse devices.
The H8830 can be attached to many types of
pulse output meter. Power, water, gas, etc. For
“KYZ” type power meters, use the normally
open contacts, usually labeled “K and Z”.
register functions
Pulse Count: The pulse count is stored as an unsigned 32-bit integer. This allows 1.
for 2 32 pulses (4.2 billion) to be counted before rollover. On Modbus systems
that do not allow you to read 32-bit values, you can calculate the pulse count as
follows:
count = MSW * 65535 + LSW
Instantaneous Pulse Rate: The pulse rate values for instantaneous, minimum, and 2.
maximum rates are calculated based on the time between arriving pulses. For
example, if InstPulse1 = 30 and InstPulse count size = 5, then the average rate for
the last 5 pulses is 6 sec/pulse. To convert the register values (in seconds) to a rate
value, use the following formula:
Rate/hour = (N * 60 * 60 / InstRegister)
where InstRegister is any of the 6 register values 4 through 9, and N is the
instantaneous pulse count size at offset 10.
Min/Max Pulse Rate: These 4 registers are calculated from the instantaneous pulse 3.
rate. These latching registers are updated whenever the minimum or maximum
rate fields are exceeded by the instantaneous rate. These four registers may be
cleared by writing a zero to the register. Writing to one min./max. register clears
all four min./max. registers.