A1S38B PLC MELSEC A Base unit 8-slot Base Rack Unit PR50

A1S38B PLC MELSEC A Base unit 8-slot Base Rack Unit PR50 Feature: The MELSEC-A main base unit has the capability to connect many different PLC modules such as the power supply, main CPU, extension cables, battery, etc… This base unit serves allows up to 8 input/ouput units to be connected at any one time. – I/O numbers are allocated in the order of the numbers set in extension base number setting, regardless of the order of connection of extension cables. – When allocating I/O points, all main bases and extension bases are regarded as having 8 slots of I/O points. – If extension base number setting has not been performed at one or more modules, I/O points are allocated by regarding each slot in the total number of slots involved obtained by multiplying the number of extension bases for which setting was skipped by 8 slots-as occupying 16 points per slot