Chapter 3
Expansion I/O Units
3.1 Parts and Terminology 3 − 3...........................
3.1.1 Expansion I/O Unit Types 3 − 4.................
3.2 Specifications 3 − 6...................................
3.2.1 General Specifications 3 − 6...................
3.2.2 Input Specifications 3 − 6......................
3.2.2.1 Limitations on Number of
Simultaneous Input ON Points 3 − 7..
3.2.3 Output Specifications 3 − 8....................
3.2.3.1 Relay Output Type 3 − 8............
3.2.3.2 Transistor Output Type 3 − 9.........
3.3 Internal Circuit Diagram 3 − 10........................
3.3.1 Relay Output Type (E8RS/E8RM/E16RS/E16RM)
3 − 10
3.3.2 Transistor Output Type 3 − 11..................
3.3.2.1 NPN Open Collector Type
(E16T/E32T) 3 − 11.................
3.3.2.2 PNP Open Collector Type
(E16P/E32P) 3 − 13...............
3.3.3 Expansion Input Units (E8X/E16X) 3 − 14.......
3.3.4 Expansion Output Units 3 − 15................
3.3.4.1 NPN Open Collector Type
(E8YT/E16YT) 3 − 15..............
3.3.4.2 PNP Open Collector Type
(E8YP/E16YP) 3 − 17..............
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