Monitoring Usage
Model 3700 Advanced Configuration Options
The Model 3700 data acquisition server setup and configuration page includes an advanced configuration page to set all
of the R9120-5 transceiver features with a convenient web page interface Below is an example screen for the Model 3700
advanced configuration page
In this setup page, there are several options available
• Serial port timeout, and protocol configuration: When a request comes in over the wireless mesh network and is sent out
on the R9120-5 transceiver RS485 serial port, the R9120-5 transceiver must wait for the attached Modbus device to reply
to the query The timeout option controls how long the R9120-5 transceiver will wait before giving up on the attached
Modbus device and discarding the query Most Modbus devices will respond in 150 ms or less
• Pulse input contact closure threshold: Allows you to set a maximum resistance to be counted as a “closed” contact This is
helpful when using intrinsic barrier devices Default of 500 Ohms will work in most applications
• Pulse input maximum count frequency: For most pulse meters, 10 Hz is adequate Faster counting of mechanical relays
may result in “relay bounce” and give an incorrect count Consult the pulse output device for information on maximum
expected pulse output rate
• Data log control: Enable/disable Model 3700 data logging for the R9120-5 transceiver
OTEE:
N
This is an internal Model 3700 data acquisition server feature, and does not set any registers on the
R9120-5 transceiver
In addition to the configuration options, some further details about the R9120-5 transceiver are provided These include the
serial number, firmware version, uptime, RF/RS485 packet counters, and internal temperature and power supply monitor
For further information configuration and status registers, see
Page 8
June 2016
XMT-UM-02107-EN-01