Product data

5Morningstar Product Connectivity Manual

of MODBUS

transmission exist, ASCII and RTU (remote terminal unit).

IMPORTANT: Morningstar products are MODBUS RTU

devices.

For more information into the capabilities of MODBUS

, please refer to Section 4.

1.1.3 MODBUS TCP/IP

The MODBUS

protocol can also be used over IP (Internet Protocol) via an Ethernet connec-

tion. MODBUS

data over IP is identical to MODBUS

data over serial RS-232, however, it is

embedded in data packets characteristic of IP.

MODBUS TCP/IP

uses an Ethernet (RJ-45) connection and is supported by all Morningstar

products with an Ethernet port. It allows the user to connect to the Ethernet enabled unit using

the MSView

software package and view real-time system data, log system data, and program

custom charging setpoints.

Morningstar products without an Ethernet port (but with another communications port) require a

MODBUS

Ethernet to Serial converter serving as a bridge between MODBUS IP

and serial

MODBUS

in order to be connected to an Ethernet network. See Section 2.2.10.

1.1.4 HTTP

HyperText Transfer Protocol is the most common communications protocol used for transmitting

data over the internet. Ethernet capable Morningstar controllers feature HTTP compatibility, en-

abling it to host webpages that display controller settings, real-time system data, logged historical

data, and system status.

1.1.5 SMTP

Simple Mail Transfer Protocol is used by Ethernet enabled Morningstar controllers to deliver e-

mail alerts and regular status updates of the system. See Section 8.0 for more information on the

ability to provide e-mail/sms alerts via SMTP.

1.1.6 SNMP

Simple Network Management Protocol is often used by large, integrated systems to monitor

individual pieces of equipment on the system network. Ethernet enabled Morningstar controllers

areabletosendasynchronousSNMPtrapscorrespondingtoalarms,faults,orcustomdened

events. These traps are received by an SNMP browser running on the destination computer.

Browsers (such as the MIB Browser) can be downloaded for free on the Internet. See Section 8.0

for more information on SNMP.