210
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
7 Examples of Wiring for Various Uses
7.8 Seven Segment with Latch [SEGL (FNC 74)/BCD (FNC 18)]
2. Output extension block
Example of program
Example of wiring
1) In the case of sink wiring
Use the sink only input, sink only output type main unit and a transistor output (sink only output) type
output extension block. The wiring example is the [FX
3UC-32MT/D or FX3UC-32MT-LT] + output
extension block [FX
2NC-16EYT-DSS].
2) In the case of source wiring
Use the sink/source common input, source only output type main unit and a transistor output (source only
output) type output extension block. The wiring example is the [FX
3UC-32MT/DSS] + output extension
block [FX
2NC-16EYT-DSS].
BCD
M8000
D100
K2Y020
FX
3UC
-32MT/D
FX
3UC
-32MT-LT
Y020COM0 Y021 Y022 Y023 Y024 Y025 Y026 Y027
12481248
8421 8421
COM0
FX
2NC
-16EYT
Transistor output (sink)
*
* Use a 7-segment display with a latch and a built-in BCD decoder.
Fuse
-
Internal
circuit
7-segment display
+
Y
COM1
PLC
7-segment display to be used for sink wiring
(in the case of transistor output)
Signal
FX
3UC
-32MT/
DSS
Y020+V0 Y021 Y022 Y023 Y024 Y025 Y026 Y027
12481248
8421 8421
+V0
FX
2NC
-16EYT-DSS
Transistor output (source)
*
* Use a 7-segment display with a latch and a built-in BCD decoder.
Fuse
Signal
-
Internal
circuit
7-segment display
+
Y
PLC
+V0
7-segment display to be used for source wiring
(in the case of transistor output)
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