Data Sheet
Modbus Ethernet Gateways (G01 - G03 & G14 - G16)
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Features
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Introduction
Devices are based on G01 - G03 gateways (ESP32 Xtensa LX6 microcontroller) and G14 - G16 gateways (STM32F4 microcontroller) depending on needed ports and interfaces.
Dedicated EMC integrated circuits guarantee improved connection quality by limiting the impact of interference typical for an industrial environment.
Modbus gateways allow data transmission between LAN hosts and serial devices by converting Modbus protocols (Modbus TCP and Modbus RTU/ASCII). They are intended to be used in industrial networks especially in the field of Industry 4.0 but not only. Apart from extending the capabilities of industrial devices, they can be also adapted up to user’s requirements and needs.
Transmission is carried out by two modes: Gateway and Router. In the Gateway mode, the port is used to communicate with Slave devices, but in the Router mode with Master devices. It is also possible to set up different modes on every port. Block diagrams below describe how each of these modes works.
The device has max 20 sockets open in Gateway mode and max 8 in Router mode. It is possible to increase this value at client's request.
Specification
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Redisage PN |
G01 |
G02 |
G03 |
G14 |
G15 |
G16 |
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Ports |
RS232 |
2x |
- |
- |
4x |
2x |
- |
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RS485 |
- |
1x |
- |
- |
2x |
4x |
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RS232/RS485 |
- |
- |
2x |
- |
- |
- |
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Microcontroller |
ESP32 |
STM32F4 |
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WiFi |
N/A |
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Power |
Voltage |
12-30 VDC |
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Power |
< 1 W |
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Frame ground connection |
yes |
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Baud rate |
up to 115200 bps |
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LED indicators |
communication Tx, Rx and power |
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RS485 termination |
120 ohm manually enabled |
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Connector |
RS232/RS485 |
8-pin terminal block max. 2.5 mm2 wire |
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Power |
3-pin terminal block max. 2.5 mm2 wire |
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Ethernet |
RJ45 |
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Transmission |
RS485 |
max. 1,200 m at 9.6 kbps; max. 400 m at 115.2 kbps |
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RS232 |
max. 15 m at 115.2 kbps |
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Mounting and enclosure |
DIN rail, plastic PA - UL 94 V0, black/green |
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Temperatures |
-40°C to +75°C operating and storage |
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Humidity |
10 - 90% RH, non-condensing |
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ESD protection |
±4 kV contact discharge / ±8 kV air discharge |
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Certification |
CE, RoHS, EMC, LVD |
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Norms |
61000-6-2 - Immunity standard for industrial environments 61000-6-4 - Emission standard for industrial environments |
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Variants
G01 - Ethernet Modbus Gateway 2x RS232
G02 - Ethernet Modbus Gateway 1x RS485
G03 - Ethernet Modbus Gateway 2x RS232/RS485
In the G03 gateway user should use only RS232 or only RS485 interface of one port as they occupy the same internal bus of the device. It means, don't use pairs: RS232-1 & RS485-1 at the same time and RS232-2 & RS485-2 at the same time!
G14 - Ethernet Modbus Gateway 4x RS232
G15 - Ethernet Modbus Gateway 2x RS232 & 2x RS485
G16 - Ethernet Modbus Gateway 4x RS485
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 the power supply GND.
Pin assignments
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G01
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G02
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G03
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G14
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G15
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G16
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LED indicators
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Modbus Gateways G01 - G03 |
Modbus Gateways G14 - G16 |
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LED indicator |
Color |
Function |
LED indicator |
Color |
Function |
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PW |
Blue |
Power |
PW |
Blue |
Power |
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ETH |
Green |
Network activity |
ETH |
Green |
Network activity |
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ST |
Orange |
Console mode |
CN |
Yellow |
Console mode |
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Red |
Service mode |
COM |
Green |
RS232/RS485 activity |
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SR |
Red |
Service mode |
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ER |
Yellow |
Error |
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Enclosure dimensions
2U Module Enclosure
98 x 22.5 x 56.4
Units: mm
Pin assignments
Reset to Factory Defaults
Reset to factory defaults is possible on the web page in the device section or using the service mode.
Service mode
Procedure to enter service mode for G01 - G03 gateways
- Turn off the power of the device.
- Connect Ethernet converter to the dedicated USB/UART converter via the microUSB port.
- Connect the USB/UART converter to the PC.
- Open the serial console (default baud rate is 115200 bps).
- Press and hold the S1 button.
- Turn on the power.
- Wait until the ST indicator (red LED) lights up.
- Release the S1 button.
- If the process is successful, service commands can be typed into the terminal.
Procedure to enter service mode for G14 - G16 gateways
- Install STM32 Virtual COM Port Driver (if it was not done before).
- Turn off the power of the device.
- Connect Ethernet converter directly to the PC (the dedicated USB/UART converter is not obligatory).
- Open the serial console (default baud rate is 115200 bps).
- Press and hold the S1 button.
- Turn on the power.
- Wait until the ST indicator (red LED) lights up.
- Release the S1 button.
- If the process is successful, service commands can be typed into the terminal.
List of commands in the service mode
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Command |
Description |
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help |
Print the help. |
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credits |
Print current credits value for this device. |
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dev_ident |
Print the device identification value. |
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restart |
Restart the system. |
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serial_num |
Print the serial number of this device. |
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version |
Display the bootloader version. |
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xmodem |
Download image to the internal flash using xmodem. |
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defaults |
Reset application variables to defaults. |
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ipconfig |
Print or change the network configuration. |
In the service mode, the “ipconfig” command can only show a last static IP address.
Additional notes
| Related information and links |
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| Ordering information | Accessories | Similar products |
Products family sample photo
DISCLAMER NOTES
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Datasheet-ID:
SR-D