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Integrated PLC Protocols
2
Function Overview
2.1
Integrated PLC Protocols
Mitsubishi Alarm Modems can communicate directly with the PLCs of leading manufacturers
using the relevant PLC protocol, and access PLC variables, markers and ports via the PLC pro-
gramming interface. This can be achieved without having to adapt the PLC program or load a
special function block for communication.
These protocols are supported:
b Mitsubishi Alpha XL
b Mitsubishi MELSEC FX1S/FX1N and FX2N/FX2NC
b Mitsubishi System Q (in preparation)
2.2
Alarming with Acknowledgement
Mitsubishi Alarm Modems are fully automatic and can send status and fault mes-
sages to any recipient via SMS, fax, e-mail or Express E-Mail. Messages can be
triggered by PLC variables.
Address book:
Messages:
Alarms:
Alarm cascade
and acknowledgements:
2.3
Remote Switching via SMS and Express E-Mail
A short command via SMS or Express E-Mail can switch the optional outputs of
the Mitsubishi Alarm Modem and those of a connected PLC. PLC variables can
also be set in this way.
The execution of the command can also be acknowledged. 100 SMS switch
commands with up to 10 parameters each can be defined as required. PLC
variables can be queried simply and quickly by SMS command without the need for a PC.
2 - 1
The SMS, fax and e-mail addresses (max. 100) are
managed in an address book.
The message texts (max. 100) can contain up to 100 actual
values from the PLC and can be of any required length
when used with faxes and e-mails.
Up to 100 alarms and actions such as switching commands
can be defined.
Any number of freely definable alarm levels can be set up if
message acknowledgment is required. If a message is not
acknowledged within a specified time, one or several
recipients can be notified. This can be cascaded
as required.
Function Overview
MITSUBISHI ELECTRIC
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