iii
4.11 Hi
h Speed Counters ........................................................................................4-22
4.11.1 Basic Hi
h Speed Counter Operation ..................................................................... 4-23
4.11.2 Availabilit
of Hi
h Speed Counters on FX
0
, FX
0S
and FX
0N
PLC’s...................... 4-24
4.11.3 Availabilit
of Hi
h Speed Counters on FX, FX
2C
PLC’s ........................................ 4-25
4.11.4 Availabilit
of Hi
h Speed Counters on FX
2N
C
PLC’s ..........................................4-28
4.11.5 1 Phase Counters - User Start and Reset (C235 - C240) .......................................4-29
4.11.6 1 Phase Counters - Assi
ned Start and Reset (C241 to C245) ..............................4-30
4.11.7 2 Phase Bi-directional Counters (C246 to C250) .................................................... 4-31
4.11.8 A/B Phase Counters (C252 to C255) ......................................................................4-32
4.12 Data Re
isters................................................................................................... 4-33
4.12.1 General Use Re
isters ............................................................................................ 4-34
4.12.2 Batter
Backed/ Latched Re
isters ......................................................................... 4-35
4.12.3 Special Dia
nostic Re
isters................................................................................... 4-35
4.12.4 File Re
isters ..........................................................................................................4-36
4.12.5Externall
Ad
usted Re
isters................................................................................... 4-37
4.13 Index Re
isters..................................................................................................4-38
4.13.1 Modif
in
a Constant...............................................................................................4-39
4.13.2 Misuse of the Modifiers ...........................................................................................4-39
4.13.3 Usin
Multiple Index Re
isters................................................................................4-39
4.14 Bits, Words, BCD and Hexadecimal..................................................................4-40
4.14.1 Bit Devices, Individual and Grouped .......................................................................4-40
4.14.2 Word Devices .......................................................................................................... 4-42
4.14.3 Interpretin
Word Data ............................................................................................ 4-42
4.14.4 Two’s Compliment...................................................................................................4-45
4.15 Floatin
Point And Scientific Notation ............................................................... 4-46
4.15.1 Scientific Notation....................................................................................................4-47
4.15.2 Floatin
Point Format ..............................................................................................4-48
4.15.3 Summar
Of The Scientific Notation and Floatin
Point Numbers.......................... 4-49
FX Series Programmable Controllers
