I/o expansion capability, Ex250, Ex500 – Toshiba EX250 User Manual
Page 4: Expansion capability
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I/o
EXPANSION CAPABILITY
EX250
One (1) expansion unit can be connected to each EX250 controller. A total of 16 I/O slots are available. If
32 point I/O modules are used, all the discrete I/O can be located on the controller leaving the expansion
unit available for register type I/O (Analog, PID, BCD, etc.)
Local I/O
• 2S6 points or
• 32 registers
EX500
Three (3) expansion units can be connected to each EX500 controller. A total of 32 I/O slots are available.
If 32 point I/O modules are used, all the discrete I/O can be located on the controller and the first
expansion unit leaving the last two expansion units available for register type I/O (Analog, PID, BCD,
etc.).
Local I/O
• 512 points or
• 64 registers
Notes: 1) A 0.5 m expansion cable is shipped with each expansion unit. Optional I m expansion cables are
also available. Total cable length should be less than 2 m.
2) Four types of expansion units are available
EU-6237
480 mm width, 8 ilou, with AC power »upply
EU*6257D
480 mm width, 8 slots, with DC power supply
EU-6279
390 mm width, 8 slots, no power supply
EU-6278
240 mm width, 4 slots, no power supply, tentiiiution only
If total 5 Vdc current consumption will exceed 4.5 A, the expansion unit with power supply
must be used.