117
SECTION 2
Special Features
This section provides an introduction to some of the main CQM1/CPM1/CPM1A/SRM1 features, including the
instructions available through expansion instructions, a monitoring feature called differential monitoring, and the analog
setting function available in the CQM1-CPU42-EV1 and CPM1/CPM1A PCs.
If you are not familiar with OMRON PCs or ladder diagram program, you can skim over this section as an overview of
these features, but will want to read SECTION 3 Memory Areas and SECTION 4 Ladder-diagram Programming before
reading this section in detail. Also, details on programming instructions can be found in SECTION 5 Instruction Set.
2-1 Expansion Instructions (CQM1/SRM1 Only). . . . . . . . . . . . . . . . . . . . . . . . . 118
2-1-1 CQM1 Expansion Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
2-1-2 SRM1 Expansion Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
2-2 Advanced I/O Instructions (CQM1 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
2-2-1 TEN-KEY INPUT – TKY(18) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
2-2-2 HEXADECIMAL KEY INPUT – HKY(––) . . . . . . . . . . . . . . . . . . 122
2-2-3 DIGITAL SWITCH INPUT – DSW(87) . . . . . . . . . . . . . . . . . . . . . 124
2-2-4 7-SEGMENT DISPLAY OUTPUT – 7SEG(88) . . . . . . . . . . . . . . . 127
2-2-5 Alternate I/O Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
2-3 Macro Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
2-4 Differential Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
2-5 Analog Settings (CQM1-CPU42-EV1/CPM1/CPM1A Only) . . . . . . . . . . . . 132
2-6 Quick-response Inputs (CPM1/CPM1A Only). . . . . . . . . . . . . . . . . . . . . . . . 133