Modem Initialization String

Communications SetupION 7500 / ION 7600 User’s Guide

Communications Port	Setup Register	Function	Default

		A BootP server automatically sets the IP Address, Subnet
	IP Boot Option	Mask, Gateway, and SMTP Mail Server IP Address.	BootP
	IP Boot Option	– see your Network Administrator to determine if BootP is	BootP
		– see your Network Administrator to determine if BootP is
		used

	IP Address	This sets the IP Address of the meter	None (if BootP server is
	IP Address	This sets the IP Address of the meter	not used)
			not used)

Ethernet port	Subnet Mask	This sets the Subnet Mask setting for the Ethernet Port	None (if BootP server is
	Subnet Mask	This sets the Subnet Mask setting for the Ethernet Port	not used)
			not used)

	Gateway	This sets the Ethernet Gateway setting for the Ethernet Port	None (if BootP server is
	Gateway		not used)
			not used)

		This sets the IP Address for the SMTP Mail Server that is	None (if BootP server is
	SMTP Server	configured to forward mail from the meter to the final	None (if BootP server is
	SMTP Server	configured to forward mail from the meter to the final	not used)
		destination	not used)
		destination

1The factory set Unit ID for COM1 is based on the serial number of the meter, using the last four numbers before the dash. For example, if the serial number is PA-0009B263-01, the Unit ID is set in the factory to 9263. After a factory reset, the unit ID number will default to 100.

2If you have the internal modem order option, the modem shares COM3 with the IRDA optical port. The modem is factory configured to answer in the number of rings specified by Answer HR Rings (the Non-Answer HR Rings value is ignored by default). The modem initialization string (Modem Init) can only be altered via software communications.

Refer to the online ION Programmer’s Reference for complete details about all the setup registers in the Communications module.

The setup register labeled ModemInit is available for ION 7500 and ION 7600 meters with internal modems, and defines the initialization string for the internal modem (by default, the modem is factory configured to answer on one ring). You should not require changes to the ModemInit string for normal operation. If you require advanced modem functionality, you can customize the ModemInit register with a string up to 47 characters long.

Refer to the Modem AT Commands technical note for information regarding your internal modem, including details on customizing the modem’s registers.

NOTE

The ModemInit string is automatically sent to the internal modem when the ModemInit setup register is changed, when the meter is powered up, and when the baud rate of the modem’s Communications module is changed.

Communications Protocols

By default, all COM ports are configured to use the ION protocol. If you want to make use of Modbus RTU, DNP, or GPS system, you need to configure the Protocol setup register for the Communications module that controls the port you want to use. However, the FACTORY protocol is reserved for the use by Technical Service Engineers.

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Chapter 3 - Default Meter Functionality

7500, 7600 specifications

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Multi-Tech Systems 7600, 7500 manual Modem Initialization String, Communications Protocols

Models: 7500 7600

Communications Port