
826
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.1 Special Device List (M8000 -, D8000 -)
Advanced Function
M 8160*1 SWAP function of XCH (FNC 17) –3 3 –––3–3
M 8161*1*2 8-bit process mode 3 3 3 –3333 3
M 8162 High speed parallel link mode 3 3 3 –3333 3
[M]8163 Not used – – – – –––– –
M 8164*1 FROM (FNC 78), TO (FNC 79) instructions:
Transfer points variable mode – – – D8164 – – 3*3 –3
M 8165*1 SORT2 (FNC149) instruction:
Sorting in descending order –33*4 – –––– –
[M]8166 Not used – – – – –––– –
M 8167*1 HKY (FNC 71) instruction:
HEX data handling function –3 3 –––3–3
M 8168*1 SMOV (FNC 13) instruction:
HEX data handling function 3 3 3 –––3–3
[M]8169 Not used – – – – –––– –
*1. Cleared when the PLC switches from RUN to STOP.
*2. Applicable to ASC (FNC 76), RS (FNC 80), ASCI (FNC 82), HEX (FNC 83), CCD (FNC 84), and CRC
(FNC188) instructions*5.
*3. Available in Ver. 2.00 or later.
*4. Available in Ver. 2.20 or later.
*5. CRC (FNC188) instruction is available only in FX3U and FX3UC PLCs.
Pulse Catch (Refer to Section 36.7 for details.)
M 8170*6 Input X000 pulse catch 3 3 3 –3333 3
M 8171*6 Input X001 pulse catch 3 3 3 –3333 3
M 8172*6 Input X002 pulse catch 3 3 3 –3333 3
M 8173*6 Input X003 pulse catch 3 3 3 –3333 3
M 8174*6 Input X004 pulse catch 3 3 3 –3333 3
M 8175*6 Input X005 pulse catch 3 3 3 –3333 3
M 8176*6 Input X006 pulse catch –3 3 – –––– –
M 8177*6 Input X007 pulse catch –3 3 – –––– –
*6. Cleared when PLC switches from STOP to RUN.
FX2N, FX2NC, FX3U, or FX3UC Series PLC: EI (FNC 04) instruction is necessary.
FX3G, FX1S, FX1N, or FX1NC Series PLC: EI (FNC 04) instruction is unnecessary.
Communication Port Channel Setting (Refer to Data Communication Edition for details.)
M 8178 Parallel link channel switch (OFF: ch1/ON: ch2) 3 3 3 – –––– –
M 8179 N:N network channel switch*7 3 3 3 – –––– –
*7. The channel is specified by either setting or not setting M8179 in the setting program.
→ For setting program, Refer to Data Communication Edition
• ch1: M8179 is not set in program
• ch2: M8179 is set in program
Number and name Operation and function
Applicable model
FX
3G FX3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
2N
FX
1NC
FX
2NC