819XX_MAN_GRM-H_11-2022_ENG_pag. 23
3.1.2. Configuration software and real-ti-
me checks
Caution! It is first necessary to supply
the 24Vdc power supply to the device
and then connect it to the PC using
the appropriate cable to diagnose and
measure the electrical values controlled in real time
Connecting the GRM and powering it later can lead
to inconsistent current readings due to the dual power
supply (programming cable +24Vdc).
The connection between PC and GRM-H via cable
allows you to configure, read and acquire the data
read from the field in real-time (measured voltage,
current, power, alarms and device status etc. ).
The GF_eXpress configuration software allows the
complete configuration of the GRM-H using a USB
converter cable (F060800), which can be ordered as
a Gefran accessory.
For more information on programming with a PC, see
the GF_eXpress documentation available at www.
gefran.com.
Caution! A high level of knowledge of the problems
and techniques for controlling electricity is required to
correctly configure the GRM-H device so that it meets
the application needs.
Caution! Before commissioning the GRM-H device,
the user must ensure the parameters are set correctly
to avoid damages to persons or property. If you are
unsure of your skills or not fully aware of the potential
consequences of incorrect parameter settings, we
advise you not to proceed with the configuration. If in
doubt, or if you would like some clarification, please
visit www.gefran.com or contact the Gefran Customer
Care service.
3.1.3. IO-Link
The GRM-H device can be fully configured, controlled
and monitored via the IO-Link point-to-point
communication protocol. The IODD files characteristic
of the device can be downloaded from www.gefran.
com, from the page dedicated to the GRM-H device.
For details of all parameters and commands available
in IO-Link, refer to section "6. IO-Link" on page 76
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