Manuals / Perle Systems / Computer Equipment / Network Router

Perle Systems MDC, SDS manual Default Disabled keepalive, Client-initiated tcp-port

Models: SDS MDC

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Set IOChannel

enabled

When enabled, the digital input channel or DSR/DCD/CTS input serial signal pins can be connected to:

zA Digital output or relay (if the I/O model supports relay) channel on the same

IOLAN

zOutput Serial Signal Pins (DTR/RTS)

zA Digital output channel on another IOLAN(s) or output serial signal pins (DTR/RTS) on another IOLAN(s)

zA TCP/IP application(s) running on a host on the network

When enabled, the digital output/relay channel or DTR/RTS output serial signal pins can be associated with a digital input channel or input serial signal pins.

Default: Disabled keepalive

Enables a per-connection TCP keepalive feature. After the configured number of seconds, the connection will send a gratuitous ACK to the network peer, thus either ensuring the connection stays active OR causing a dropped connection condition to be recognized.

This parameter needs to be used in conjunction with server parameter, monitor-connection-every. The interval determines how long the IOLAN will wait during inactivity before "testing" the connection. It should be noted that if a network connection is accidentally dropped, it can take as long as the specified interval before anyone can reconnect to the serial port.

connection-method

The connection-method is one of the following:

zClient-Initiated—When specified, the channel/serial signal pin will wait for connections to be initiated by another I/O channel or a TCP/IP application.

zServer-Initiated—When specified, the channel/serial signal pin initiates communication to another I/O channel or a TCP/IP application.

zLocal-Connection—When specified, the input or output, depending on how the channel or serial signal pin is configured, will be associated with another local IOLAN I/O channel or serial signal pin.

When the channel is configured as digital input or when configuring an input serial signal pin, the Output Channels parameter displays all the local digital output signals or relays that it is associated with.

When the channel is configured as digital output, you must select a local digital input channel or input serial signal pin on the IOLAN.

Note that the Failsafe Action is not compatible with the local-connection option. Default: Client-Initiated

client-initiated tcp-port

The TCP port that the channel/serial signal pin will use to listen for incoming connections.

Default: 2000 for channel 1, then increments by one for each channel

client-initiated multihost

When this option is enabled, multiple I/O channels and/or TCP/IP applications can connect to this channel/serial signal pin. The default is off.

I/O Commands 153

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Perle Systems MDC, SDS manual Default Disabled keepalive, Client-initiated tcp-port, Client-initiated multihost
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SDS, MDC specifications

Perle Systems is a leading provider of connectivity solutions, renowned for its robustness and reliability in networking hardware. Among its expansive product offerings, the MDC (Multiport Device Converter) and SDS (Serial Device Server) stand out as pivotal solutions for industries requiring seamless data communication and device management.

The Perle MDC serves as a powerful multi-port device converter, providing the ability to connect multiple serial devices to a computer network without needing a separate connection for each device. This is particularly useful in environments with limited computing resources or high device density, such as railways, manufacturing plants, or remote field operations. It is designed to convert serial communication, which is commonly used in legacy devices, into Ethernet/IP or TCP/IP protocols, ensuring that older devices can integrate into modern networks.

Main features of the MDC include its robust design for industrial environments, support for a variety of serial protocols, and multiple device connections. It supports data rates of up to 115200 bps and provides easy monitoring and configuration via a web-based interface. Additionally, the MDC incorporates advanced security features including SSL and SSH encryption, ensuring data integrity and protection against unauthorized access.

On the other hand, the Perle SDS model exemplifies advanced serial device hosting capabilities, allowing users to connect Ethernet networks to serial devices. It acts as a bridge, enabling remote devices to be configured and managed over IP networks. The SDS series is known for its versatility, supporting a range of serial communication protocols, including RS-232, RS-422, and RS-485, making it suitable for various applications such as point-of-sale systems, industrial automation, and remote monitoring.

The SDS boasts several characteristics that enhance its functionality, such as automatic device discovery, real-time monitoring, and local or cloud-based management options. Its feature set also includes traffic management capabilities, allowing the optimization of device communication by controlling the flow of data, which is critical for applications requiring high reliability and low latency.

Both the MDC and SDS benefit from a strong emphasis on ease of deployment and management. They support a range of network topologies, facilitating seamless integration into existing infrastructures. Furthermore, these devices are backed by Perle Systems' reputation for customer support and a commitment to ongoing innovation, ensuring that organizations can rely on these solutions for future growth and technological advancement.