PM230 – Modbus TCP to RTU/ASCII

1 x RS232/RS485/RS422

Application DiagramConfigurationSpecificationsInquiryDownload

Scada sends Modbus TCP commands over Ethernet to get Modbus RTU data

Send Modbus TCP commands over WiFi / Ethernet to get Modbus RTU data

Simple and Straight configuration via web interface

Status Summary

Configure Network

Configure System

Configure Modbus Gateway TCP to RTU/ASCII Slave


CPU : 32-bits ARM7 Winbonds CPU , 80 MHz
RAM : 8 M Bytes SDRAM
ROM : 4 M Bytes Flash ROM
OS : uClinux OS
Ethernet : RJ-45 Connector, 10/100 Mbps (Auto Detect)

TCP to RTU Slave
TCP to ASCII Slave
RTU to TCP Slave
ASCII to TCP Slave

Operates as a TCP Server
Can be connected by 8 TCP user connection and polling simultaneously
32 simultaneous Request for each TCP Master.

Operates as a TCP Client
Can connect to 8 TCP servers and polling simultaneously (mapped via user defined Slave ID range)
Can connect up to 256 serial chained RTU/ASCII Slave using 8 units of this Modbus gateway

0 and 245~255 are not recommended to be used as Slave ID if not sure if these numbers are already used or not as ID in the environment. This is because usually 0 is used for broadcast and 245~255 are used for else purpose.

Utility : Built-in Web server Setup, Easy Operation
Mode : TCP Server / TCP Client / UDP
Setup : HTTP Browser Setup (IE & Netscape) , Console
Security : Setup Password
Protection : Built-in 1.5KV Magnetic Isolation

Serial Port
1 x RS232 or 1 x RS422/RS485 ( software select)
Speed : 300 bps ~ 230.4 Kbps
Parity : None, Odd, Even, Mark, Space
Data Bit : 5, 6, 7, 8
Stop Bit : 1, 2
RS232 Pins : Rx, Tx, GND, RTS, CTS, DTR, DSR, DCD
RS422 Pins : Rx+, Rx-, Tx+, Tx- (Surge Protect)
RS485 Pins : Data+, Data- (Surge Protect)
Built-in RS422/RS485 Terminal Resistor
15KV ESD for all signals

Watch Dog Function
Power : DC 9-24V
Led Lamp : SYS (PWR), LAN, LED 1, LED 2 ( User Define )
Operating Temperature : 0ºC ~ 70ºC
Storage Temperature : -10ºC ~ 80ºC
Dimension : 100 x 90 x 25 mm ( W x D x H )
Weight : 140 g
Support DIN-Rail or Wall mount
RoHS : Compliant with RoHS
Regulatory Approvals : EMC: FCC Class A, CE Class A
Warranty : 1 year

LED Indicators Definition
Flashing : System is normal (Flashing speed is about once per second)
Off : LAN cable is not connected
On : LAN cable is connected
Flashing : Data in transmission
On : No data in transmission
Flashing : Data in transmission
Off : No data in transmission
Flashing : Data in transmission

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    File Description File size
    pdf PM230 catalog PM230 Specifications - Ethernet Modbus TCP to RTU/ASCII
    891 KB
    zip IP Search utility ETM and ETM-Java IP Search Utility Ethernet Manager and Ethernet Manager for Java
    205 KB
    pdf PM230 Modbus TCP to ModBus RTU Gateway UM PM230 Modbus TCP to RTU User's Manual
    831 KB
    pdf PM230 Modbus TCP to ModBus RTU Gateway QIG PM230 Modbus TCP to RTU Quick Installation Guide
    648 KB
    pdf PM230 Modbus TCP To RTU-ASC Diagram 1105 Modbus TCP to Modbus RTU Diagram
    99 KB
    pdf PM230 Modbus RTU To TCP Diagram 1105 Modbus RTU to Modbus TCP Diagram
    15 KB
    pdf PM230 Modbus Application Protocol V1.1b PM230 Modbus Application Protocol
    321 KB
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