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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 – 33333
[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
– 3
3
*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 FX
3U 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.
FX
3G, 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