KL6031

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The KL6031 is a versatile analog input module featuring 2 full duplex data transfer channels and a maximum cable length of 15 meters. Manufactured by Beckhoff as part of the KL Analog Input Modules series, it operates at data transfer rates up to 115,200 baud. It supports operating temperatures ranging from -25°C to +60°C.

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Product Description:

The KL6031 is an Interface Module manufactured by Beckhoff. It can be easily integrated into a larger system or housed in a standard rack unit. It belongs to the KL Analog Input Modules Series.

The KL6031 module has been tested and certified to endure vibration and shock conditions defined by international standards which makes it reliable in industrial environments. The module has a bit distortion of less than 3% which means its accuracy of transmitted bits is high. It draws its operating power from the K-bus which eliminates the need for a separate power connection. This module is lightweight of only 80 grams which is beneficial for ease of installation and minimal load on mounting structures. The dimmer has RS232 cable which can run up to 15 meters which is typical for reliable serial communication without significant signal degradation. It draws approximately 55 milliamps from the K-bus. The module logic low (0) signal in RS232 standard is represented by a voltage between -18 V and -3 V, which complies with the RS232 electrical standard. It is able to process up to 22 bytes of user data plus 2 bytes for control/status in each cycle.

The KL6031 interface module uses the RS232 protocol which is a widely used standard for serial communication. It is designed to resist electromagnetic interference and has isolation between its signal and bus voltage. Its wiring can be plugged in directly which is compatible with KSxxxx series terminals, which simplifies installation and replacement. It is able to function in humid environments (up to 95% RH) as long as there's no condensation which prevents moisture damage. The module supports standard RS232 baud rates with a default of 9600.

Approvals/markings
CE, CCC, UL, ATEX, IECEx, DNV GL
Baud rate range
4800…115 200 baud
Bit distortion
< 3%
Cable length
max. 15 m
Data channels
2 (TxD/RxD)
Default data format
9600 baud, 8 data bits, no parity, 1 stop bit
Duplex mode
full duplex
Installation position
variable
Logic '0' signal voltage
–18…–3 V
Logic '1' signal voltage
3…18 V
Operating temperature
–25…+60 °C
Process image control/status width
2 × 8 bit
Process image user data width
22 × 8 bit
Protection rating
IP20
Receive buffer size
1024 bytes
Storage temperature
–40…+85 °C
Transmit buffer size
128 bytes

Frequently Asked Questions about KL6031:

Q: Why does the KL6031 use full duplex RS232 instead of half duplex communication?

A: Full duplex RS232 allows simultaneous sending and receiving, reducing data collisions and increasing communication efficiency in complex systems.

Q: How does the 500 V electrical isolation benefit the KL6031 in industrial environments?

A: It protects the control system from voltage surges and ground loops, improving safety and signal integrity.

Q: What’s the advantage of having a 1024-byte receive buffer in the KL6031 module?

A: A larger buffer helps prevent data loss during burst transmissions, enhancing reliability in real-time communication systems.

Q: Why is the KL6031 Interface Module certified to EN 61000-6-2/6-4 EMC standards?

A: These certifications ensure the module can operate reliably in noisy industrial environments and won’t interfere with other sensitive electronics.

Q: How does plug-in wiring support ease of installation in the KL6031?

A: The pluggable wiring simplifies module replacements and maintenance, minimizing system downtime and installation errors.


Internal Product Review

  • ‘‘The KL6031 Universal Dimmer by Beckhoff is a high-performance module with excellent vibration resistance and low bit distortion (<3%). Its 1024-byte receive buffer, 128-byte transmit buffer, and 4800–115,200 baud rate range ensure reliable data handling. With IP20 protection and ATEX certification, the KL6031 is ideal for demanding applications.’’

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