Data Sheet

RemoteCOM is a complete hardware and software solution for creating remote communication ports. Software part can be uploaded to any of the Redisage C30 - C32 Ethernet Converters. It provides a communcation between a LAN host and a device equipped with serial interfaces RS232/RS485. Dedicated app makes it easy and fast to configure and deploy. There is a possibility to create virtual COM ports with the Redisage Configurator to minimize number of cables. Onboard WiFi module makes it even more versatile and independent product.

C30 C31 C32

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Features

Ethernet converter to RS232/RS485
ESD protection for the RS485 data line
Power supply: +12 to +30 VDC
Transmission speed up to 115200 bps
Tx, Rx and power LED indicators
RS485 embedded termination 120 ohm
WiFi 802.11b/g/n 150 Mbps / 2.4 GHz
Operating temperatures: -40°C to +75°C
DIN rail mounting
Dimensions: 90x56.4x22.5 mm
3 years warranty
Customization of OEM is welcomed

Introduction

C30 - C32 are a family of products that are reliable converters based on the ESP32 Xtensa LX6 microcontroller, extending the capabilities of industrial devices.

The addition of a network interface allows remote access and full control of communication via a computer.

The user performs the basic configuration of transmission parameters in the browser.

Dedicated EMC integrated circuits guarantee improved connection quality by limiting the impact of the interference typical for an industrial environment.

Specifications

Redisage PN		C30	C31	C32
Ports	RS232	2x	-	-
	RS485	-	1x	-
	RS232/RS485	-	-	2x
Microcontroller		ESP32
WiFi		802.11b/g/n 150 Mbps / 2.4 GHz
Power	Voltage	12-30 VDC
Power	Power	< 1W
Frame ground connection		yes
Baud rate		up to 115200 bps
LED indicators		communication Tx, Rx and power
RS485 termination		120 ohm manually enabled
Connector	RS232/RS485	8 pin terminal block max. 2.5 mm² wire
	Power	3 pin terminal block max. 2.5 mm² wire
	Ethernet	RJ45
Transmission distance	RS485	max. 1,200 m at 9.6 kbps; max. 400 m at 115.2 kbps (Belden 9841 2P twisted-pair cable, if diﬀerent cables are used, the transmission distance may change)
Mounting and enclosure		DIN rail, plastic PA - UL 94 V0, black/green
Temperatures		-40°C to +75°C operating and storage
Humidity		10 - 90% RH, non-condensing
ESD protection		±4 kV contact discharge / ±8 kV air discharge
Certification		CE, RoHS

Applications

C30 - Ethernet Converter 2 x RS232 + WiFi

C31 - Ethernet Converter 1 x RS485 + WiFi

C32 - Ethernet Converter 2 x RS232/RS485 + WiFi

In the C32 converter user should use only RS232 or only RS485 interface of one port as they occupy the same internal bus of the device.

Frame ground FG

Electronic circuits are constantly prone to electrostatic discharge ESD.

Redisage Electronics modules feature a design for the frame ground terminal block FG.

The frame ground provides a path for bypassing ESD, which provides enhanced static protection ESD abilities and ensures the module is more reliable.

Connecting FG terminal block to the earth ground will bypass the ESD disturbances outside the device so will provide a better level of protection against ESD.

Frame Ground FG connection reference drawing is provided below.

If earth ground is not available FG can be left floating or it can be connected with power supply GND.

Pin assignments

C30

C31

C32

Enclosure dimensions

2U Module Enclosure.

98 x 22.5 x 56.4

Units: mm.

Getting started

Power supply

Ethernet converters C30 - C32 have wide voltage power input 12-30 VDC, the power consumption is less than 1 W.

LED indicators

Ethernet converters C30 - C32 have 3 LED indicators:

PW LED Blue - Power
ETH LED Green - Network activity
ST LED Orange - USB-UART serial console mode

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Configuration by the Web Page

Default configuration of the Ethernet Converters:

IP address: 192.168.100.100
Subnet mask: 255.255.255.0
Gateway: 192.168.100.1
DNS 1: 192.168.100.1
DNS 2: 8.8.8.8

User name: admin
Password: admin123

To access to the web page open the web browser, type the IP address in the address bar, and log in using the default user name and password. The device and a PC must be connected to the same Local Area Network.

After a successful login, the status page will show the current status of the ports.

To change the user name and password click on the user icon and select “Edit user”.

Ports configuration is possible on the “Ports” page.

Item		Description
Service	RemoteCOM	The RemoteCOM option lets to attach the port to a computer running the Redisage Configurator as if it would be physically present in the computer.
	TCP Socket	TCP/UDP Socket exposes this port as a regular network socket - connect to this socket with own software and write/read data to send/receive data over the serial port, without any additional software or serial port handling.
	UDP Socket
Port		The service number - the device has an “IP Address” by which it is identified and a couple of services running on it. It's required to tell the device which service should be in use, by entering this device's IP address and the port number in the RemoteCOM client or user’s software.
Connection Timeout [s]		The time specifying how often (every how many seconds) the "keep alive" packet will be sent to check if the client is still connected. Value 0 means that the connection is kept permanently without any timeout.
Inactivity Time [ms]		The maximum allowed time in milliseconds during which there is no data transfer. When connection is inactive for the time longer or equal to the entered value, then it will be closed. Value 0 means there is no measure of the inactivity time at all.
Encryption		Determine how the data is protected 'in flight' over a network. It is available only with the RemoteCOM service. Once enabled, it is necessary to set the password.
Password		Protect the communication between the device and various clients - keep it secret! Same settings have to appear in clients - without the correct passwords, a client will not be able to connect at all.
Termination		Enable/disable termination on the RS line.
Baud Rate		Determine the port's transmission speed over the data channel.
Data Bits		Determine the number of data bits in the port's message frame.
Parity		Enable/disable parity check in the port's message frame.
Stop Bits		Determine the number of stop bits in the port's message frame.
Notes		These notes are for information only - feel free to write down anything related to this port (device it connects to, etc.). They're also shown in the Configurator during the device discovery - in the other words, they're public.

Changing port’s service closes all sockets connected to the ports.

In the UDP mode, port number 15051 is reserved for UDP broadcast service.

Network settings can be changed on the “Network” page.

Item	Description
Configuration Method	Enable/disable the DHCP server. If the DHCP server is disabled, the IP address of the device has to be set manually.
IP Address	IP address of the device.
Netmask	Netmask associated with the IP address.
Gateway	Gateway address currently used by the device.
MAC Settings	Allow setting the default MAC address or typing it manually.
MAC Address	Allow changing the physical address of the device.

Item	Description
HTTP Port	Determine the port of the control panel.
Telnet Port	Allow connection with the device via Telnet.
Broadcasts	Notify RemoteCOM clients in the same network about this device's existence. With this enabled, the Configurator will automatically set most of the settings correctly after picking the correct port.
Hostname	Label that is assigned to the device.
DNS Address 1 (Primary)	Primary Domain Name System used by the device.
DNS Address 2	Domain Name System used by the device.

On the “Device” page there are tools used to a firmware update, a factory reset and a device reboot.

The “Info” page contains basic information about the device.

Configuration by the Serial Console

The device has the ability to be reconfigured via a serial console. C30 - C32 require a dedicated USB/UART converter connected to the USB micro-B connector on the front of the device.

Procedure to enter serial console mode on C30 - C32.

Turn off the power of the device.

Connect the PC to the C1 micro-USB port of Ethernet Converter using the dedicated USB/UART converter.

Open the serial console (default baud rate is 115200).

Press and hold the S1 button (or connect Din pin to GND pin if the button is not mounted).

Turn on the power and wait a few seconds until the orange LED lights up.

Release the button (or disconnect Din pin from GND pin).

Once this is done, log in using the default username and password, then change the network settings using ipconfig command.

List of all commands

Command	Description
help	Print the help.
conn	Print active TCP connections.
eth_mac	Print or change MAC address.
exit	Close current CLI session.
http_port	Print or change default http port.
ipconfig	Print or change the network configuration.
net_stat	Print lwIP statistics.
ping	Check internet connection with the desired host.
restart	Restart the system.
reboot	Same as restart.
sys_heap_usage	Print current heap usage.
telnet_port	Print or change default telnet port.
uart	Print or change uart configuration.
uart_service	Print or change uart_service configuration.
user	Print or change user configuration.