Chapter 2 Specifications
2 – 13
2.5 Base Unit
Module features Type
EH-BS3A (Approx. 0.22 kg (0.48 lb.))
(Weight) EH-BS5A (Approx. 0.28 kg (0.62 lb.))
EH-BS6A (Approx. 0.31 kg (0.67 lb.))
EH-BS8A (Approx. 0.36 kg (0.79 lb.))
EH-BS11A (Approx. 0.4 kg (0.87 lb.))
Dimensions
(mm (in.))
L1
100 (3.91)
14 (0.55)
L2
90 (3.54)
Communication slot (Slot for communication module)
L1 (Outer
dimensions)
L2 (Mounted
dimensions)
EH-BS3A all slots EH-BS3A 222.5 207
EH-BS5A all slots EH-BS5A 282.5 267
EH-BS6A all slots EH-BS6A 312.5 297
EH-BS8A all slots EH-BS8A 372.5 357
EH-BS11A only slot 0 to 7 EH-BS11A 462.5 447
(not available for Slot 8 to A)
Explanation of function Base unit is one of basic modules for PLC system. Power is supplied from power supply module to
CPU and I/O modules via base unit. CPU exchanges data with I/O modules via base unit.
Select base unit according to the number of I/O modules for your system.
Item Description
Connector for power module This is a connector to power supply module.
Connector for CPU module This is a connector to CPU module or I/O controller module.
Connector for I/O module This is a connector to I/O module.
Expansion cable connector This is a connector to expansion cable.
Mounting hole ×4 Use these holes when installing with screws (M4×20 mm (0.79 in.) )
Mounting lever for fixing to
DIN rail
This is used when mounting to a DIN rail.
Cover for expansion cable
connector
This cover is used for protecting the expansion cable connector when it is not used.
Connector for CPU module
Mountin
hole
4
Connector for
ower module
Mounting lever to fix to DIN rail
×
2
Connector for I/O module
Expansion cable connector
Cover for expansion cable connector