The LC-131 is an easy-to-use digital input module, equipped with 3-channel digital input, functions open/short circuit detection, and 1-channel relay output. The digital input type is dry contact, meaning that wiring is easy. There are two methods of controlling the relay outputs, either directly from the digital input or via a remote host. Settings, such as communication protocol and node address can be configured either via hardware or via software, depending on the situation. The module has also passed + / -4 kV ESD reliability test, and is designed to operate in harsh environments.
Digital Input |
Channels |
3 |
Type |
Dry |
On Level |
Close to GND |
Off Level |
Open |
Counters |
Max. Count |
16-bit (65535) |
Max. Input Frequency |
100 Hz |
Min. Pulse Width |
5 ms |
Short Circuit Detection |
Yes, optioned external terminal resistance of 1 K Ohms is required |
Relay Output |
Channels |
1 |
Type |
Power Relay, Form A (SPST N.O.) |
Operating Voltage |
250 VAC or 30 VDC |
Max. Load Current |
16 A (Res. load ) |
Operating Time |
15 ms Max. |
Release Time |
5 ms Max. |
Mechanical Endurance |
100,000 ops |
Electrical Endurance |
50,000 OPS |
Power-on and Safe Value |
Yes, programmable |
Communication |
Interface |
RS-485 |
Format |
N, 8, 1 |
Baud Rate |
1200 ~ 115200 bps |
Protocol |
DCON, Modbus RTU |
Node Addresses |
96 ~ 127 |
Connector |
RJ-11 (6P4C or 6P6C) |
LED Display |
Power |
1 LED as Power Indicator |
EMS Protection |
ESD (IEC 61000-4-2) |
+/-4 kV contact for each Terminal |
+/-8 kV Air for Random Point |
EFT (IEC 61000-4-4) |
+/-4 kV for Power Line |
Power |
Reverse Polarity Protection |
Yes |
Powered from Terminal Block |
Yes, 10 ~ 30 VDC |
Consumption |
0.8 W Max. |
Mechanical |
Dimensions (W x L x H) |
52 mm x 98 mm x 27 mm |
Installation |
Screw Mounting |
Environment |
Operating Temperature |
-25°C ~ +75°C |
Storage Temperature |
-30°C ~ +80°C |
Humidity |
10 ~ 95% RH, Non-condensing |
LC-131 CR |
3-channel Digital Input Module with Open/Short Detection and 1-channel Relay Output (RoHS) |
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