Riken Keiki GD-84D-EX Series, Operating Manual

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6. Alarm Activation 6-3 External output operations
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<GD-84D-EX-ET communication specifications (Ethernet)>
The following functions are provided through connections to external software using standard network
protocols. Refer to the ‘Gas Detector Head GD-84D-EX Series (Ethernet model) Communication
Functions Operating Manual’ for more information.

Web function(s) (HTTP)
Use a web browser from a connected PC to view and change settings, execute calibration, and perform
tests through the graphical user interface.

Mail transmission function (SMTP)
Notifications are sent to the addresses registered on an external mail server if gas alarms or fault
alarms are triggered.

Time synchronization function (SNTP)
Time data is acquired from a time server to keep the time up to date.
 Modbus slave function (Modbus/TCP)
The product can function as a Modbus slave, returning settings with responses to read requests and
modifying settings with write requests.
 Function for connecting to PLCs (FINS/MC)
The settings are sent to the PLCs and data provided so the PLCs can process with a ladder program.
Loading from PLCs is also performed to enable modification of settings as well as calibrations and tests.