antaira STM-501C 1-Port MODBUS TCP to RTU-ASCII Gateway Instructions
- June 12, 2024
- antaira
Table of Contents
Devolinx STM-501C
1-Port MODBUS TCP to RTU/ASCII Gateway
Features
- DIN-Rail or Panel Mount
- Supports 10/100 Mbps Ethernet
- Supports RS-232, RS-422, and RS-485 Serial Interface
- Supports LAN and WAN Communications
- Management Access Password Protected
- Supports up to 8 MODBUS TCP Master to MODBUS RTU/ASCII
- Supports Inactive Timeout
- Supports Loop Back Mode
Specifications
The STM-501C, MODBUS gateway allows the legacy MODBUS RTU/ASCII devices to
operate on a MODBUS TCP network. It allows either MODBUS serial master or
slave to communicate with MODBUS TCP’s slave or master.
Modbus TCP masters to Modbus RTU/ASCII slaves: STM-501C allows multiple MODBUS
TCP masters to communicate with a MODBUS serial network. Since MODBUS serial
network can only handle one query at one time, queries from different masters
are pipelined and processed one by one.
Modbus RTU/ASCII master to Modbus TCP slaves: When STM-501C function as MODBUS
RTU/ASCII master to MODBUS TCP slave gateway, STM-501C can connect up to 8
MODBUS TCP slave. User can specify a UID range for each MODBUS TCP slace.
Inactive timeout: STM-501C provides inactive timeout that allows user to
specify a time period to disconnect TCP/IP connection if there is no activity
in the network. It could be the peer of the connection is down if the
connection does not tear down it would occupy one connection slot and prevent
any another connection again.
Configuration tools: User friendly management software provides an easy way to
confi gure STM-501C. It can search all serial device servers within a local
area network independent of its subnet. It can also fi nd a serial device
servers of a specifi c IP address over wide area network. STM-501C can also be
confi gured by its console port or through telnet connection. STM-501C also
provides web interface for user to confi gure it by a web browser.
Serial Buffer
Output: 64K bytes
Input: 8K bytes per port
Serial Connection
DTE – BD-9 male
LAN
10/100 Mbps Auto-detecting – 10 Base T, 100 Base TX
Serial Interfaces
RS-232 – TX, RX, RTS, CTS, DTR, DSR, DCD, GND
RS-422 – TX+, TX-, RX+, RX-, RTS+, RTS-, CTS+, CTS-, GND
RS-485 – Data +, Data –, GND
Data Rate
110 bps to 230.4 k bps
Parity
none, even, odd, mark, space
Data Bits
5, 6, 7 or 8
Stop Bits
1, 1.5 or 2
Protocol
TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP
Management
Manager software, Serial Console, Telnet, Web server Firmware upgradeable
Dimensions
3.35 x 4.5 x 0.90 in (8.5 x 11.5 x 2.3 cm)
Power Requirements
7 ~ 30 VDC
500 mA
Operating Temperature
0 to 50 °C (32 to 122 °F)
Storage Temperature
-20 to 60 °C (-4 to 140 °F)
Humidity
0 – 90% Non-Condensing
Approvals
CE, FCC
Warranty
5-Year Warranty
Pin Assignments
DB-9 Pin
1
| RS-232| RS-422| RS-485
---|---|---|---
DCD| RX-| –
2| RXD| RX+| –
3| TXD| TX+| DATA+
4| DTR| TX-| DATA-
5| GND| GND| –
6| DSR| CTS-| –
7| RTS| CTS+| –
8| CTS| RTS+| –
9| RI| RTS-| –
Ordering Information
STM-501C 1-Port MODBUS TCP to RTU/ASCII Gateway
POWER ADAPTER SOLD SEPARATELY
Optional Accessories
PA-FCS-US
PA-FCS-UK
PA-FCS-EU
DIN-RAIL-KIT| Power Adapter For FCS/STM, 12V 0.8A, 100-240V (US Plug)
Power Adapter For FCS/STM, 12V 0.8A, 100-240V (UK Plug)
Power Adapter For FCS/STM, 12V 0.8A, 100-240V (Euro Plug)
DIN Rail Mounting Kit
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Toll-Free: 877-229-3665
Phone: 714-671-9000
FAX: 714-671-9944
e-Mail: info@antaira.com
Website: http://www.antaira.com
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