Specifications

Modbus Gateway
TRP-C37M is an industrial environmental
Ethernet serial server with wide range power
inputs and serial communication protection,
built-in surge and over current protection
ensuring long distance serial quality. The RS485
interface built-in hardware decoder ensures
RS485 data without loss and fast direction
switching. The hardware keeps on line RS485
device working fine; Built-In watchdog function
will auto reset when system fail or power fails.
External switch ensures loss of password or IP
that can be easily reset back to factory settings.
The TRP-C37M operates in “Direct IP Mode”,
“Virtual COM Mode”, and “Paired Mode”, The
Ethernet port supports Auto-MDIX and Auto-
select 10/100MB. TRP-C37M also offers a Heart
Beat feature to ensure a reliable communicating
connection.
TRP-C37M also offers the maximum
connection 16 host client to link the one serial
server that is easy to operate in
Modscan32 ,Modbus Poll,CAS Modbus Scanner
and SCADA application uses TCP mode,
Virtual-COM mode and Pair Mode.
In network security, the TRP-C37M is able to set
up 8 sets host IP, only these host IP can access
the TRP-C37M.
When the TRP-C37M MCU stop working
correctly, the watchdog timer waits for a preset
period of time, and the performs a hardware
reset.
When TRP-C37M working at industrial
environment, if the voltage is unstable, The
TRP-C37M built-in power detection circuit can
prevent the power fail cause of the system boot
fail.
Wide input range DC power supply.
Power Input detection circuit.
External watchdog function prevents system or
power fail.
Support Auto-MDIX twisted pair crossover
detection and Auto-Correction.
Maximum Connection 16 Client PC at Server
Mode.
Compatible with Modscan32 ,Modbus Poll,CAS
Modbus Scanner and SCADA .. application.
Maximum 8 sets host IP that limits network
access.
Surge protection and over current and over voltage on RS-422/485
data lines.
Support baud rate from1200~921600Kbps.
Auto switching RS-232/422/485 signal interface.
Virtual COM drivers for Windows 98/WIN2000/WIN
XP/Vista/WIN2003/WIN 7/WIN 8/WIN 8.1.
Virtual Com Support Server, Client, UDP mode.
Virtual Com Support Modscan32 or Modbus Poll utility.
Fully compatible with Ethernet and TCP/IP protocol.
Supports 10/100 Mbps Ethernet.
Power/Link/UART RX/UART TX mode LED indicator.
Heart Beat function ensures a reliable communicating connection.
Auto reconnection when power or Ethernet fail.
Back to factory configuration by external switch.
Update the firmware from LAN.
Dual power input select from screw terminal or DC-Jack.
Power Input Voltage: DC +10V to +30V.
LAN: Auto-MDIX, 10/100 Mbps Auto-detecting.
RS-232: TX, RX, RTS, CTS, DTR, DSR, DCD, GND.
RS485 signal: differential 2 half-duplex wires (DATA+, DATA-).
RS422 signal: differential 4 full-duplex wires.(TX+,RX+,TX-,RX-)
Baud Rate: 1200,2400,4800,9600,19200,38400,57600,115200,921600 K bps.
Parity: none, even, odd.
Data Bits: 5, 6, 7 or 8.
Stop Bits: 1, 1.5 or 2.
Protocol: TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP.
Modbus TCP Type: TCP Master to Serial Slave, TCP Slave to Serial Master.
TCP Slave to Serial Master Mode: Maximum 8 TCP Port. UID Range:00~FF.
External switch: OFF OFF : Directly IP mode, RTU protocol. .
ON OFF: Virtual-Com and Paired mode .
OFF ON: Directly IP mode, ASCII protocol
ON ON: Back to Factory.
Virtual-Com mode support RS232 TXD,RXD,GND.
 RS422 TX+,TX-,RX+,RX-.
 RS485 D+,D-.
Power supply: Screw terminal, or DC jack.
Serial interface: +/-15 KV ESD.
RS422/485 interface: Surge, over current, over voltage protection.
RS422/485 interface: Industrial plug-in screw terminal.
Plug-in screw terminal wiring: Accepts AWG #12 ~30 wires.
Power consumption: 12V/140mA.
Operating Temperature: -10 to 65 °C.
Humidity: 0~90% Non-Condensing.
Dimensions: 151(L)*75(W)*26(H) mm.
Weight: 395g with packing.
26
TRP-C37M Modbus TCP to
RTU/ASCII Gateway