LS Industrial Systems GIPAM - GMPC-III General Description; Introduction to GMPC-III

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3 General Description
3.1 Introduction
GMPC-III is a interfacing equipment which makes possible to communicate between the
devices using I-Net standard (Exclusive communication method or standard of LGIS)
such as GIMAC or GIPAM and the devices using any other communication standard or
protocols. GMPC has RS-232, RS-422 and RS-485 port for it and enables I-Net data to
convert RS-232, RS-422 or RS-485 one, that is, GMPC has a function that makes it
capable to communicate among the devices accepting different protocol with converting
not only a data from remote control system to I-Net data but also converting I-Net one
to the one used remote system.
In particular, GMPC provides MODBUS protocol of MODICON which is widely accepted
in the industry so that it is capable to interface the devices or control & monitoring
system using MODBUS protocol.
GMPC supports the function called S.O.E(Sequence Of Event) of GIPAM. It receives
information about time from Time-Master which is selected on the network and
broadcast it all over the slave devices. GMPC makes the devices maintain to be
synchronized on the I-Net Network and there is no interference except for transmitting
delays within several milli-seconds between I-Net devices and central control &
monitoring system.