Circutor CVM-B Series Manuel d'utilisateur Page 259

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7.5.- MODBUS/TCP BRIDGE COMMUNICATIONS MODULE
The M-CVM-AB-Modbus TCP ( Bridge) is a communications module for connecting the
CVM-B units to a Modbus/TCP network and as an Ethernet to RS-485 gateway.
Modbus/TCP is a communications protocol designed for enabling industrial units to
communicate with each other on Ethernet networks using TCP/IP protocols.
Basically, Modbus/TCP encapsulates a Modbus frame within a TCP frame, making it possible
to congure and monitor a unit via the Internet.
The communications module is also equipped with an RS-485 gateway.
7.5.1.- CONNECTION TERMINALS
Table 125:List of terminals, Modbus TCP ( Bridge ) communications module.
Terminals in the unit
1: Ethernet 3: B(-), RS-485
2: A(+), RS-485 4: S, GND for RS-485
1
42 3
Figure 177: Modbus TCP ( Bridge) communications module terminals
7.5.2.- LEDs
Table 126: List of LEDs, Modbus TCP (Bridge) communications module.
LED Status Function
LINK / ACT
On Unit connected to the network
Off
Unit disconnected from the network
Blinking light Activity on the bus
SPEED
On 100 BT
Off 10 BT
SPEEDLINK/ACT
Figure 178: LEDs Modbus TCP. (Bridge)
259
Instruction Manual
CVM-B100 - CVM-B150
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