Communications Document

4.3 Remote Connections

Remote connections are established between a PC and a device when IP (Internet Protocol) ad-

dressing or cellular networks are used.

IMPORTANT: The connections described in this section require extensive use of 3rd party hard-

ware, as described in Section 2.2. When interfacing 3rd party hardware with Morningstar prod-

ucts using an RS-232 (serial) connection, it is essential that the proper voltage be applied to the

Morningstar unit’s DB-9 pins. Please refer to Section 11.0 Troubleshooting and Misc. (Serial Port

Power with 3rd Party Devices) for detailed information.

4.3.1 Cellular Network

Remote communication is also capable over an existing cell network. Most cell service providers

offer a modem version of their cell phone hardware, allowing you to dial up to a remote site and

transferdatawirelessly.Thiscongurationisverysimilartohowalandlinemodemconnectionis

used, however, wireless capability allows for connections to remote areas without landline ac-

cess. Using this type of connection requires a paid data plan subscription from your local cellular

provider.

In areas where cell phone towers are not yet located, satellite modems can be used in a similar

manner. Satellites in orbit relay the signal, instead of a land-based tower.

Contact your cellular provider for information on plans, pricing, activation, and technical assis-

tance.

Figure 28. Cellular Network (paid service) Connection Diagram

Once connected, please refer to Section 5 for info on using MSView

MODBUSTM Networking