Dial-up Configuration of the CM574-RCOM Communication Module

Note

ABB recommends HSM Eco Modems for usage with CM574-RCOM Communication Modules.

In order to use dial-up connections, a modem module has to be appended to the RCOM/RCOM+ Communication Module in the project structure:

The module contains several parameters to configure the modem configuration.

The module contains all commands required for controlling the modem. It is preconfigured for the Logem LGH 9600H1 modem and should not be changed if using these modems.

The parameters shown in the “Module parameters” tab have the following meaning:

Parameter	Default value	Value	Meaning
Modem init	ATZ^M~~ATI4^M~	String	Hayes compatible AT command to initialize connected modem.
Dial prefix 1…6	ATDT	String	Hayes compatible AT command to dial a number. 6 different dial prefixes can be configured.
Dial suffix	^M	String	Hayes compatible AT command string that is appended to the dial string.
Connect answer	CONNECT	String	Message of the connected modem, if connection is established.
Modem ring	RING	String	Message of the connected modem, if incoming call is registered.
No carrier	NO CARRIER	String	String Message of the connected modem, if no carrier is detected.
Command mode	~~+++~~	String	Hayes compatible AT command to switch modem to command mode.
Modem answer	ATA^M	String	Hayes compatible AT command to answer incoming call.
Modem hangup	ATA^M~~~~~	String	Hayes compatible AT command to hang up (terminate) an existing connection.
Max ring time	70	0…255	Maximum time [s] until a call is cancelled.
Max number of calls	3	0…255	Maximum number of calls executed to establish a connection to a communication partner.
Call delay	2	0…255	Delay time [s] between two calls.
Hangup time	30	0…255	Time until a hang up process is considered as completed.

After configuring the modem, a list of telephone numbers (phone book) has to be created for the nodes of the RCOM network. This is done by adding new sub entries to the “Dial-up modem” entry.

The telephone numbers can be assigned to the different nodes of the network by entering the corresponding address in the “Base parameters” tab.

Parameter	Default value	Value	Meaning
Node id	0	0…254	The node number (address) of the RCOM partner (read-only).

To configure the telephone number, the following parameters have to be defined in the “Module parameters” tab:

Parameter	Default value	Value	Meaning
Dial prefix number	1	1…6	Identifier for the corresponding prefix. Prefixes can be configured under module “Dial-up modem” as described above.
Telephone number	-	Valid telephone number	The telephone number as a string