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Modbus – Blue Sky UCM User Manual

Page 16

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Blue Sky Energy – Universal Communication Module

15

FTP COMMUNICATION SETTINGS

The following setup information needs to be entered into the FTP Data File Transfer section of the UCM Setup web page for FTP file transfer. If

necessary, contact your IT administrator or FTP Server provider for the required information and how to download the files to your local computer. Blue Sky
Energy does not provide FTP download software or endorse any particular FTP download software. There are a variety of programs that can facilitate FTP
download, but a popular free program is FileZilla available at

http://filezilla-project.org

.

Address of remote FTP server (e.g., www.myserver.com)

User name to allow access to the remote FTP server

Password to allow access to the remote FTP server

Intervals between file uploads in hours; Range 0.0 ― 24.0 hours (setting of 0.0 hours disables FTP transfers)

Selection of automatic file name increments, or overwriting of the same file name

¾

For the UCM to transfer files via FTP the Gateway IP Address in the Ethernet communications window of the UCM Setup

page must be set to the IP Address the UCM will use to access the external DNS Server. In router based systems this is typically
the IP Address of the router used for router setup. Refer to the your router’s documentation.

FTP FILE CONTENTS

The .csv format FTP file as viewed in an Excel spreadsheet is organized into two rows and multiple columns. The first row is the data name, with the

second row being the data values collected at the point in time the FTP file was sent. If a data value in a record is unavailable that cell will contain dashes (――).
A partial FTP data file is shown in Excel below.


FTP FILE DATA DESCRIPTIONS

SPREADSHEET

COLUMN

COLUMN

HEADING

DESCRIPTION / COMMENTS

A

ChgMode

5 possible charge modes ― Off, Bulk, Acceptance, Float or Equalize

B BatVolts Battery

voltage

C BatAmps

Net battery current in amps, positive is charging ― from IPN-ProRemote

D

BatDschAH

Battery discharge amp-hours from full (negative) ― from IPN-ProRemote

E

BatTemp

Battery Temperature in ºC, or Bad or No Sensor if faulty or not installed

F

AuxOut State

of

the

Auxiliary output, ON or OFF

G

AuxVolts

Auxiliary output voltage, operates in both Aux. Battery Charge and Load Control modes

H

TotChgA

Maximum total PV charge amps ― sum of all charge controllers on IPN network

I

#0InVolts

PV input voltage from Master charge controller ― IPN address 0

J

#0InAmps

PV input amps from Master charge controller ― IPN address 0

K

#0OutAmps

PV output amps from Master charge controller ― IPN address 0

L

#1InVolts

Same charge controller voltage and current data as columns I, J & K above, but for
charge controller Slave address #1. Additional data and columns to the right contain the
same data for charge controller address #2 - #7.

M #1InAmps

N #1OutAmps

TABLE 2

MODBUS

As part of the UCM’s communication capabilities, the industry standard MODBUS application protocol is provided both as isolated RS-485 serial and

as MODBUS/TCP (Transmission Control Protocol). MODBUS use described here assumes the user is familiar with the MODBUS protocol and its
terminology. The UCM supports RTU mode only. Refer to

www.MODBUS.org

for more information.

ELECTROSTATIC HANDLING PRECAUTIONS

The UCM cover must be removed to configure DIP switch and jumper settings. With the cover removed observe industry standard electrostatic handling

precautions to minimize the likelihood of electrostatic damage . At a minimum, discharge yourself by touching a water faucet or other electrical ground prior to
handling the unit and avoid touching components on the circuit board. The risk of electrostatic damage is highest when relative humidity is below 40%.

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