What is the deffrence between Siemens S7-300 & S7-400 PLC?
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Answer Posted / guna
S7-300 plc is a mid end plc rated by the Siemens, This
rating is depends on so many constraints but main
consideration on Number of I/O's & Instruction set, No.of
baud-rates, Cost per module. it works on the Simatic
manager driver software. it is available in compact and
modular types. this needs separate flash memory cards
(Removable)in cpu memory to store the data.
S7-400 is a high end plc means its capacity is larger when
compared to s7-300 in all the ways like technically and
physically. it can also work on the simatic manager. S7-400
is also called as DCS (distributed control systems) which
works on the driver software of PCS-7. its memory capacity
is above 64mb(very high).
the hardware configuration of both the plc types differs
a lot.
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Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.
