Badger Meter Model 3700 Data Acquisition Server - Manual (Page 4)

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NOTE: Low Voltage analog, pulse, and RS485 wiring that
enters electrical panels must have a minimum insulation rating
that exceeds the voltage inside the panel. In addition, other
regulations may apply; consult the building codes in your area
prior to installation.
NOTE: Some Modbus devices do not use the same label notation
as the Model 3700. Rather than +,-,S, Emon uses Low, High,
and Gnd. To attach an Emon meter, use + to High, - to Low,
and shield to Gnd.
Note: The Model 3700 internal I/O module (analog and pulse
inputs) uses Modbus address 250, and will show up in the Modbus
device count as a single Modbus device. Additional A8923-4 IO
modules may be added to the Modbus loop as needed.
Step 5 - Power-up and diagnostics: Attach the power supply
to the power input jack on the Model 3700, and plug the power
brick into a wall outlet. The power brick should be in a location
that is accessible for connection and disconnection. After power
is applied, the green alive light in the upper right of the Model
3700 should come on and the LCD display will display a series
of diagnostic screens ending with the following message on the
LCD display (this boot sequence may require up to 20 seconds
to complete):
Model 3700 Ready
192.168.40.50
This indicates that the Model 3700 has loaded properly and
is ready for configuration and connection to the network and
sensors. If the “power” light does not come on or the LCD display
does not cycle to the above screen, verify that the power cord is
plugged in. If after cycling the power the unit still does not power
up (or if an error message appears in the LCD display) contact
technical support. After the Model 3700 has been powered up
for a minute, the green Alive LED should blink slowly once per
second during normal operation.
• Modbus TX/RX: The Modbus TX and RX LEDs blink to
indicate data on the RS485/Modbus loop. The RX LED
blinks only when data is received by the Model 3700.
• Modem RTS: The modem is being monitored or operated
by the Model 3700, off when the modem is idle. This LED
will be on when a dial-out call is in progress, or when dial-in
is enabled and waiting for an inbound call.
• Modem Cd: The modem has a carrier connection to a
remote system.
• Modem TX/RX: Data is being sent or received on the
modem.
• alive: Blinks once per second while the system is operating
correctly.
• alarm: Blinks to indicate a problem.
• Inputs 1-8: In pulse or status mode, the LED is on when
contacts are closed. In analog 4-20mA and 0-10V mode,
the LED blinks quickly (2hz) to indicate an over-range alarm
error. In 4-20mA mode when the input current is less than
4mA, or in resistance mode where the input resistance is
above 10Mohm, the LED will blink a pattern (blink, blink,
off) to indicate a broken wire alarm.
• Ethernet Link/act: On when connected to a hub or switch,
off when not connected. Blinks when LAN traffic is being
sent or received.
• RS485 RX/TX: The 485TX LED should blink slowly once
per second during normal operation. The RX LED will blink
when external modbus devices communicate with the Model
3700.
• RF TX / RF RX: If the A8812 has a built-in option with an
on-board radio, the RF LEDs will blink showing transmit and
receive packets.
Step 6 - Verify connected devices: To verify that the Modbus
devices are installed and reporting correctly, use the Modbus
status utility on the Model 3700 server. To do this test, follow
these steps:
A. Press and release the menu (top) button on the Model
3700. The following will appear on the LCD display:
[Main Menu]
TCP/IP Config
B. Press the menu (top) button several more times until the
LCD display shows the following message:
[Main Menu]
Modbus Status
C. Press the select (bottom) button on the server and the
unit will begin the diagnosis of the Modbus loop. After
the check is completed, the unit will display the following
message:
X devices OK
X fail, X new
D. Verify that the number of devices located by the server
(the total of OK, fail and new) matches the number of
devices actually installed and connected. For a first